(1) 1)纯的，无杂质的 (not mixed with any other substance)：～silver/gold/wool/cotton/silk 纯银/金/羊毛/棉/丝;～white 纯白色;〖同〗unmixed， neat; 〖反〗impure， mixed; 2)纯净的，无尘(菌，有害物质)的 (clean; without dirt， dust， bacteria， or any harmful matter)：～oxygen/water 纯净氧/水;The air by the sea is～and healthy. 海边的空气纯净， 有益于健康。〖同〗clean， fresh， unpolluted， healthful; 〖反〗unclean， dirty， polluted， mixed; 3)纯种的 (of unmixed race)：～blood 纯的血统;a～black/white 一个纯黑/白种人;That is a～Persian cat/Arab horse. 那是一只纯种波斯猫/阿拉伯马。These animals were bred from～stock. 这些动物的血统很纯。〖同〗unmixed; 〖反〗impure， mixed;

(2)纯洁(贞节)的，无邪念的 (free from evil or sin; without sexual thoughts or experience)：～thoughts 纯洁的思想;～in heart/thought/body and mind 心地/思想/身心纯洁;She was a～and wholesome girl. 她是个纯真无邪的姑娘。(as)～as the driven snow 纯洁无瑕;〖同〗innocent，moral; 〖反〗impure， guilty， immoral;

(3)纯粹的，单纯的，完全的 (mere; nothing but; complete and total) [无comp][作 attrib]：～arrogance/folly/ignorance/nonsense 纯粹的妄自尊大/愚昧/无知/胡说八道;～coincidence 纯属巧合;come on an idea/meet by～chance 纯粹是偶然想起一个主意/碰见;do sth out of～kindness/malice/mischief 纯粹出于好意/恶意/恶作剧而做某事;It was～luck/chance that he was home when we called. 我们打电话时他在家纯属运气/偶然。He shut his eyes in～bliss. 他非常幸福地闭上了眼睛。〖同〗absolute，complete，utter，thorough;

(4)(指声音)清亮的，圆润的 ((of sound) very clear and pleasant to hear)： a～note/voice 一个清亮的音符/声音;The singer's voice remained～and clear throughout the evening. 歌手的嗓音在整个晚上一直圆润清亮。

(5)(concerned only with theory and not with how the theory can be used in practical ways) [无comp][作attrib](fml)纯理论的：～and applied sciences 理论科学和应用科学;～academic research/art/mathematics 纯学术研究/纯艺术/理论数学;〖同〗theoretical; 〖反〗applied， practical;

pure and simple 纯粹的，完全是： The problem，～and simple， is finding a baby-sitter. 问题只不过是找一个照看孩子的人而已。

→′purely adv 完全是，纯然地;′pureness n 纯净(正，粹);͵purifi′cation n 净化;′purify vt 使纯净(净化);′purist n 语言纯正癖者;′purity n 纯净(正，粹);′pure-bred adj 纯种的;n 纯种