adj (1)易懂的，清楚(晰)的 (clear and easy to see， hear or understand)： rephrase the question in～English/language用易懂的英语/语言重新提问;His words/meanings were quite～. 他的话/意思很容易懂。make one's meaning/one's annoyance/one's situation～让别人清楚自己的意思/烦恼/处境;make oneself～让别人清楚自己的意思;It was～that they were deeply moved. 显然他们被深深地感动了。～speech/writing 易懂的语言/清晰的笔迹;His voice was quite～over the telephone. 他的声音在电话里听起来非常清晰。The mountain stands out～against the sky. 山在天空的衬托下显得轮廓清晰。〖同〗clear，unmistakable， understandable，comprehensible;distinct，obvious; 〖反〗complex，incomprehensible;indistinct，vague，hidden;

(2)坦白(诚)的，直率(言)的 (frank and direct; honest; not trying to deceive)： in～words 坦白地说;a～answer/talk 坦率的回答/谈话;The～truth is that... 明摆着的事实是…… to be～with you 坦白地对你说;be～about one's feelings 坦陈自己的感情;If you don't mind my～speaking， I want to... 恕我直言，我想…… 〖同〗honest，frank，open，outspoken，unreserved; 〖反〗deceptive，disguised，indirect;

(3)未经装饰的，不奢华的，简单朴素的，普通的 (undecorated; not luxurious; ordinary and simple)：～food/cooking/cake/flour/chocolate/paper/fabric 清淡的食物/清淡的烹饪方法/(未加果料等的)蛋糕/普通面粉/(不加奶的)纯巧克力/(没有格的)白纸/素色织物;a～but very elegant dress 朴素典雅的衣服;in a～envelope 装在(不带任何标志的)普通信封里;under～cover 装在(不带任何标志的)普通信封;Their style of living is simple and～. 他们的生活方式简单朴素。Most of her relations are just～folk. 她的亲戚多半都不过是普通百姓。〖同〗simple，ordinary，common，unornamented; 〖反〗distinguished，decorated，ornamented，fancy;

(4)不漂亮(not pretty or good-looking)： have a good figure but a～face 体形好但相貌平平;a～design 不好看的图案;grow from a rather～child/girl into a beautiful woman 从一个相貌平平的小孩子/姑娘出落成一个美貌的妇女;a few rather～bits of furniture 几件难看的家具;very～but kind and gentle 长相不好但心地善良;〖同〗homely，unattractive; 〖反〗beautiful，good-looking，attractive;

(as) plain as a pikestaff/the nose on one's face 显而易见的： It's as～as the nose on your face. If we haven't got any money， we can't buy a house. 这是明摆着的事。如果我们一点钱也没有就买不了房子。

(all) plain sailing 顺利，一帆风顺： After they engaged a guide， everything was～sailing. 他们雇到一个向导之后，一切都顺利了。

→′plainly adv 清楚地;明显地，显而易见地;′plainness n 清楚;显而易见;͵plain-′clothes n (尤指警察的)便装;͵plain-′clothes adj 着便装的;

adv (尤AmE) (1))清楚地 (clearly)： speak～简单明了地讲话;I could see the target～. 我能清楚地看到目标。be～visible 清晰可见;

(2)简直，非常 (simply; completely; very)： I'm～bored. 我简直烦透了。He's just～stupid. 他简直是太愚蠢了。It was just～silly. 简直蠢透了。

→͵plain-′spoken adj 说话坦白的，不讳言的