正zhènɡ

Ⅰ  ❶ （垂直或符合标准方向） straight; upright; due: 摆得端 ～ put sth. straight; ～ 前方 the due front; ～ 北 [南] due north [south]; 把柱子扶 ～ set the post upright; 这画挂得不 ～。 This picture is not straight.
❷ （位置居中） main; situated in the middle; ～ 院儿 the main courtyard; ～ 殿 main temple or palace
❸ （正面） right; obverse: 胶卷的 ～ 面 the right side of the film; 事物的 ～ 反面 the reverse and the obverse side of things
❹ （正直） honest; upright: 公 ～ just; fair; impartial; 方 ～ upright; righteous; 端 ～ upright; regular
❺ （正当） right; correct: ～ 轨 the right [correct] path or track
❻ （纯正） (of colour or flavour) pure; unmixed: ～ 味 pure flavours; ～ 货 unmixed goods; ～ 黄 pure yellow; 味儿不 ～ not the right [proper] flavour
❼ (合乎法度； 端正) standardized; regular: ～ 体字 standardized form of Chinese characters
❽ (基本的； 主要的) principal; chief; major: ～ 课目 major subjects; 代表团的 ～、副团长 the chief and the deputy leader of a delegation; ～ 驾驶员 first pilot; ～ 教授 full professor
❾ （图形的各边长度和各角大小都相等的） regular: ～ 六角形 regular hexagon
❿ （大于零的） positive; plus: ～ 角 positive angle; ～ 量 plus
⓫ （失去电子的） positive; plus: ～ 离子 possitive ion; cation
⓬(用于时间， 指正在那一点上或在那一段正中) sharp; exact: 十点 ～ at ten o'clock sharp; 在 ～ 午时 at high noon Ⅱ  ❶ (使位置正； 使不歪斜) set [put] right: ～ 一 ～ 帽子 put one's cap straight
❷ (使端正； 改正； 纠正) rectify; correct; adjust: ～ 人先 ～ 己 set a good example with one's own conduct Ⅲ  ❶ （恰好） just; exactly; right; precisely: 大小 ～ 合适 just the right size; ～ 是此时此地 right here and now; ～ 因如此 precisely because of it; ～ 如你所说 just as you say; 那人 ～ 是吴教授。 It was none other than Professor Wu. 我 ～ 要谈这个问题。 I'm just coming to that point. 这 ～ 是我们的想法。 This is exactly what we think. ～ 是这些人创造了这样伟大的奇迹。 They are the very people who worked such wonders.
❷ (表示动作的进行、状态的持续): ～ 下雪呢。 It is snowing. 铃声 ～ 响。 The bell is ringing. 时钟 ～ 打12点。 The clock was striking twelve. 他 ～ 吃着饭呢。 He is having dinner. Ⅳ  （姓氏） a surname: ～ 锦 Zheng Jin
另见 see also zhēnɡ。
◆正本 reserved copy (of a library book); original (of a document); 正本清源 reform from the bottom [from the heart]; clarify matters and get to the bottom of things; reform radically; overhaul thoroughly; clear up the source of moral character; strike at the root of the evil; 正比 {数} direct ratio; direct proportion; 正比例 {数} direct proportion; 正步 {军} parade step; goose step; positive step; 正餐 dinner; [美西南部] almuerzo; 正常 normal; regular; average; 正齿轮 spur gear; spur gear wheel; 正大 upright; honest; aboveboard; 正大光明 be open and aboveboard; conscientious; frank and righteous; just and honourable; 正旦 a young or middle-aged female character type (dressed in black) in Chinese operas; 正当 just when; just the time for; 正当 proper; rightful; rational [reasonable] and legistimate; 正道 the right way; the right track; the correct path; 正点 on schedule; on time; punctually; 正电 positive electricity; 正电荷 positive charge; 正电子 positive electron; antielectron; positron; 正定 {数} positive definite; 正定霉素 daunomycin; 正多边形 {数} regular polygon; 正法 execute (a criminal); 正反 positive and negative; 正反馈 positive feedback; regenerative feedback; positive regeneration; regenerating; 正方 square; 正方形 square; 正房 principal room (in a courtyard, usu. facing south); legal wife; 正负 plus-minus; 正负电子对撞机 positive-negative electron collider; 正告 earnestly admonish; warn sternly; inform in all seriousness; 正割 secant; transversal; 正骨 {中医} ulna; bone setting; bone knitting; 正规 regular; standard; normal; 正轨 the right path [track]; 正果 the spiritual state of an immortal reached by practising Buddhism; 正好 just in time; just right; just enough; happen to; chance to; as it happens; exactly; 正号 positive sign; plus sign; 正横 {航海} on the beam; abeam; 正火 {冶} normalization; normalizing normalize; 正极 positive pole; anode; positive electrode; positive plate; plus plate; 正交 {数} {物} {电} orthogonal; perpendicular; normal; orthogonality; quadrature; 正交场 crossed field; orthogonal field; 正教 the Orthodox Church; 正截 abscissus; 正经 [旧] the Thirteen Confucian Scriptures; {中医} regular channels; the twelve channels; 正经八百 look prim and proper; be poker-faced; in all seriousness; ear￣ nest; serious; 正经 decent; respectable; honest; proper; serious; standard; [方] really; truly; indeed; 正楷 (in Chinese calligraphy) regular script; 正离子 kation; positive ion; 正理 correct principle; the right thing to do; 正梁 {建} ridge purlin; 正六面体 {数} regular hexahedron; right parallelepiped; 正路 the right way [course]; the correct path; 正论 correct and sensible view; 正脉冲 positive pulse; positive-going pulse; 正面 front; frontage; facade; the obverse side; the right side; positive; directly; openly; 正派 upright; honest; decent; 正偏 positively biased; 正片 {摄} positive; {电影} copy; feature (film); 正品 certified products; quality products; certified goods; normal products; A- class goods; 正气 healthy atmosphere [trends, tendency]; {中医} vital energy; 正巧 happen to; chance to; as it happens; just in time; in the nick of time; just at the right time; 正切 {数} tangent; 正确 exactness; correct; right; proper; rightness; rectitude; validity; 正人君子 upright gentlemen; upright person; a man of honor; a man of moral integrity; a prince among men; the “respectable gentlemen”； 正如 exactly as; just as; 正色 [书] pure colours; with a severe countenance; {中医} normal colour of skin; 正射 normal incidence; or￣ thographic; 正时 correct timing; correct time; 正史 history books written in biographical style; 正式 formal; official; regular; 正式合同 formal contract; official contract; 正事 one's proper business; 正室 [旧] legal wife (as contrasted with concubine); 正视 face squarely; face up to; look squarely at; 正手 {体} forehand; 正书 （楷书） (in Chinese calligraphy) regular script; 正数 {数} positive number; 正态 orthostate; normality; 正题 subject of a talk or essay; {哲} thesis; 正体 standardized form of Chinese characters; regular script; block letter; 正厅 main hall; stalls; 正统 legitimism; orthodox; 正投影 orthographic projection; 正位 normotopia; 正文 main body; text; 正午 high noon; 正误 correct (typographical) errors; 正弦 {数} sine; 正弦波 sinusoidal wave; sine wave; sinusoid; 正像 {物} erect image; positive; 正向 {电} forward direction；
正形{图} conformality; 正序 positive sequence; 正压 malleation; positive voltage; positive pressure; barotropy; 正盐 {化} normal salt; 正言厉色 with a severe countenance and a harsh voice; put on a stern countenance; serious and severe; severe in speech and countenance; upright appearance; 正颜厉色 look serious and severe; speak in earnest and look serious in one's attitude; put on a stern countenance; sedate and grave; with a severe countenance; with a stern look; 正业 regular occupation; proper duties; 正义 justice; just; righteous; (of a language or writing) proper [correct] sense; 正义感 sense of justice [righteousness]; sense of what is right; 正音 correct one's pronunciation; standard pronunciation; 正余弦 sine and cosine; 正在 in process of; in course of; 正则 {数} {物} canonical; regular; 正职 principal (as contrasted with deputy); 正直 honest; upright; fair-minded; 正治 {中医} routine treatment; 正中 middle; centre; 正中 be just what one hopes for; 正中下怀 fit in exactly with one's wishes; after sb.'s heart; be as well as one's heart could have wished; be exactly [just] what one wants [hopes for]; exactly to sb.'s liking; hit [strike] one's fancy; suit one's book; It meets my views exactly.; This was how my heart would have it.; 正轴 positive axis; orthoaxis; 正字 regular script; standardized form of Chinese characters; correct a wrongly written character or a misspelt word; 正字法 orthography; 正宗 orthodox school; traditional; 正座 seats in the stalls