这使得代码更具有表达力，但是你必须要升级旧的测试代码。

This change makes the syntax much more expressive, but you will have to update any tests written in the old style.

youdao

我们应当“不择手段”地提高程序员个体的生产力，使他们写出具有很好表达力的代码。

You should do whatever possible to increase the productivity of individual programmers in terms of the expressive power of the code they write. Less code to do the same thing (and possibly better).

youdao