1.Why do we breathe, why do we procreate?

1.我们为什么要呼吸，为什么要生儿育女？

2.Why are the lupanine derivatives bitter ?

2.为什么白金雀儿碱派生物？

3.Why are they knocking down the wall?

3.他们为什么在拆墙?

4.Why are they so malevolent to me?

4.他们为什么对我如此恶毒?

5.Mike certainly rated her, goodness knows why.

5.迈克对她赞赏有加，天晓得什么原因。

6.Why did you do that, you nitwit?

6.你为什么要干那个呢?你个傻瓜。

7.Why do you always miswrite the words?

7.你怎么老写错字？

8.Why do you read that worthless rag?

8.你为什么看有价值报纸?

9.Why should all writers follow a pattern?

9.为什么作家都遵循一个模式写作呢?

10.Why did he cast aspersions upon us?

10.他为什么要中伤我们?

11.Why can not criminalize the "sex bribe"?

11.为什么不能将性贿赂犯罪化?

12.Why is the chimney smoking so much?

12.为什么烟筒冒么多烟？

13.I wonder why she is staying away.

13.我不知道她为什么还不来。

14.Why do the aged tend to be taciturn?

14.很多老年人为什么沉默寡言？

15.Why do not you climb down and apologize?

15.你为什么不认错道歉呢?

16.Why all of my destiny is too flexura!

16.为什么我命运都那么曲折！

17.Why are you offering yourself for additional work?

17.你为什么要给自己找额外活儿干呢?

18.Why should you get involved in their fray?

18.你为什么要介入他们争吵呢?

19.She was quite explicit about why she left.

19.她对自己离去原因直言不讳。

20.Why do you impute selfish motives to her?

20.你为什么说她动机自私?