You could always quibble with any study that estimates the effectiveness of one policy versus another. You can also argue circumstances change and different policies become appropriate.

你总是可以通过研究来挑剔 一个政策相对另一个的有效性，也可以认为大气候的变化需要不同的政策来适应。

youdao

I will change. I can become a different man.

我会变，变成不同的一个人。

youdao

The same class or different classes, we all laughed down, and we will not change our feelings, our friendship will never become a cold, strange.

同班或是不同班，我们都笑下去，我们大家的感情也不会变的，我们的友情绝对不会变成冷淡的陌生的。

youdao

It's important that you anticipate change as things will be different and it is likely that your working life will become more demanding.

CNN: Management Masterclass