您要查找的是不是：
- They happen to be equal in a clean superconductor in the absence of external pair-breaking fields or flows, but are not equal in general. 它们只有在没有破坏配对的外场或流的干净超导体中才偶然相等，一般而言它们不相等。
- Clean clothes and good manners are prepossessing. 清洁的衣服和良好的举止能给人以好感。
- Let's clean down the board before we paint it. 让我们在上漆以前把这块板洗干净。
- It's important for the college freshman to keep his nose clean. 对大学新生而言洁身自好是很重要的。
- He is surprised to find his room thoroughly clean. 他惊讶得发现他的房间给彻底地打扫了。
- I use an oily rag to clean my bike with. 我用沾满油污的碎布擦我的自行车。
- I was clean broke in less than four days. 不到四天我就一个钱也没有了。
- The mayor is determined to clean up the city. 市长决心清除市内的不良现象。
- The stain on his shirt is difficult to clean off. 他衬衣上的污点很难去除掉。
- The hospital is getting short of clean linen. 这所医院现在缺少乾净的被服用品。
- Clean the car from the top, preferably with a hose and warm water. 最好用软管和温水从顶部开始清洗汽车
- I suggest we make a clean break. 提议我们干干净净分手吧。
- A sharp knife makes a clean cut. 快刀切得整齐。
- He made a clean breast of his crime to the police. 他向警方如实招供。
- A good clean will really freshen (up) the house. 好好收拾一下的确会使房子焕然一新。
- It looks as if it isn't clean enough to bathe here. 看起来海水好像不干净，不能游泳。
- This material is a superconductor. 这种新材料是超导体。
- He didn't clean the room yesterday. 他昨天没打扫房间。
- Clean the area round the cooker. 把炊具周围弄干净。
- The students clean the classroom everyday in turn. 学生们每天轮流打扫教室。
