【关于down】
1. He broke down. 他崩溃了;
2. Upside down. 上下颠倒了;
3. Calm down. 冷静点;
4.She walks up and down. 她来回踱步;
5. Put it down. 把这东西放下来;
6. You look down. 你看起来很沮丧;
7. Step down. 下来。
1. He broke down. 他崩溃了;
2. Upside down. 上下颠倒了;
3. Calm down. 冷静点;
4.She walks up and down. 她来回踱步;
5. Put it down. 把这东西放下来;
6. You look down. 你看起来很沮丧;
7. Step down. 下来。
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