英语语法分析

Prevents the problem re-occuring.

预防问题的重复发生。

Here's what a naturally-occuring noctilucent cloud looks like, for comparison

以下可以对比自然形成的夜光云看起来来是怎样的

There is a major shift occuring in the workforce and women are at the center of it.

劳动力正在发生重大改变，女性将成为其核心。