重要
adjective [原级]洁净的，干净的;讲卫生的，爱干净的；无污染的
The subway is efficient and spotlessly clean. 地铁快，而且一尘不染。
noun [抽象名词]清洁，清扫，打扫
The windows will have to be given a thorough cleaning. 窗户必须得做彻底的清洁。
verb [vt. 及物动词]使）清洁，清理；变干净；做清洁工；干洗；（烹饪前）清除（动物）内脏
Mary cooked and cleaned for them. 玛丽为他们做饭、打扫卫生。
adverb [程度副词]干净地，纯洁地；彻底地，完全地
It burned clean through the seat of my overalls. 把我的连身工作服的臀部全给烧穿了。
- clean 出现在下面的课文中
- Lesson 9&10 How are you today? clean 形容词: 干净的
- Lesson 031&32 Where’s Sally？ clean 动词: 清洗
- Lesson 025&26 Mrs. Smith’s kitchen
- Lesson 143&144 A walk through the woods
- Lesson 16 Mary had a little lamb
- Lesson 41 Illusions of pastoral peace
- Lesson 8 Trading standards
- Lesson 13 The search for oil
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