1. By itself, nature can keep the balance and provide plenty of clean water for us. Nature recycles water.
    大自然本身能够保持水的平衡并给我们提供充足的净水。大自然能够使水得到反复循环利用。

2. We wore clothing slightly inappropriate for the weather, clean but not ironed,
    我们穿上了与天气稍稍不配的衣服，很干净但没有熨过。

3. The cup is clean.
    杯子是干净的.

4. The cup is clean.
    杯子很干净。

5. The moon was above, cold and beautiful, and the music reminded Soapy of those days when his life contained such things as mothers and roses and clean thoughts and collars.
    皓月当空，月光清冷而美丽。音乐使苏比想起了昔日的时光；那时他拥有母爱，享受着幸福，怀着纯洁的思想，还穿着衣领干净的衬衫。

6. The once unlimited supply of fresh, clean water is now limited.
    曾经能无限制供应的干净淡水，现在变得有限了。

7. The smoke of one small fire causes no harm to the environment. Natural cleaning processes can clean the particles of smoke from the air.
    小火带来的烟不会危害环境，因为自然净化作用会将空气中的烟尘清除。

8. The forests cannot clean the air fast enough.
    森林已不能及时清洁空气。

9. Those traditions teach that African women cook, clean, take care of children, sow and harvest crops and support their husbands.
    这些传统要非洲妇女做饭、搞清洁、照管孩子、种庄稼、收庄稼以及支持丈夫。

10. No, say the Americans: our fowl are fine, we simply clean them in a different way.
    不，美国人说，我们的家禽很好，只是我们使用了另一种清洗方式。

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