我买这个冲洗杯子的时候，我并没完全相信，因为其它东西都没用，还有我不能想象它怎么会有用，万一我的孩子拒绝合作不愿意仰着头呢。

When I purchased this rinse cup, I was skeptical, because nothing else worked, and I could not understand how it could work properly if my baby refused to cooperate and lean her head backwards.

youdao

再想象下我可以把它提供给你，只须唯一一个条件-你只能用它向善，而不能作恶。

Imagine that I offered it to you with but one condition - that you must use it for good, not evil.

youdao

我对一般均衡的另一个论点与上一个意见有关，它不仅从未存在过，也不是一个可操作的概念，而且根本不能想象它的存在。

This comment relates to another point I would make about general equilibrium; not only has it never existed, and is not an operational concept, but also it could not conceivably exist.

youdao

I cannot draw it that well, but imagine bringing the second point closer and closer to the first one.

我不能很好地把它画出来,但是你们可以想象,当第二个点,越来越靠近第一个点时

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