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- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- I use the floor cleaner to remove grease. 我用地板除垢剂清除油污。
- Clean clothes and good manners are prepossessing. 清洁的衣服和良好的举止能给人以好感。
- My one good suit is at the cleaner's. 我那套讲究的衣服还在洗衣店里呢。
- Chemicals that produce a noxious vapor when mixed. 化学物质混合后会放出有毒气体
- 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。
- Water can be changed into vapor when heated. 水被加热时，可以变成水蒸汽。
- 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。
- A vacuum cleaner is a handy household tool. 吸尘器是一种使用方便的家庭用具。
- They are trying to find a cleaner fuel for cars. 他们正试图找一种更乾净的汽车燃料。
- A liquid condensed from vapor in distillation. 蒸馏液; 馏出物在蒸馏中，从蒸汽浓缩的液体
- Something, such as air or vapor, that is exhaled. 散发物以气体或蒸汽形式发散出的东西
- 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。
- One that condenses, especially an apparatus used to condense vapor. 冷凝器冷凝器具，尤指用于冷却气体的设备
- The hospital is getting short of clean linen. 这所医院现在缺少乾净的被服用品。
- An amount of vapor, smoke, or similar material released in a puff. 烟，蒸汽量在一次呼气中散发出的蒸汽、烟雾或类似物质的量
