It decreases. If you're still not completely up on the periodic trends, that is stuff that's going to be on the first exam, so make sure that you're able to do this without taking too much time to think about it.

它会降低，如果你还没有完全掌握周期性规律，而这是第一次考试要求的内容，因此请务必做到不用,想太久就能做到这点。

麻省理工公开课 - 化学原理课程节选

Still, it's worth reviewing these questions to make sure that we completely understand how to use this pattern.

但是，我们还是要回顾一下这个句型的要点，确保能够准确地理解这个句型的用法。

Who 课堂 - SpeakingMax英语口语达人

This is one of the very important areas that still is not completely understood in stem cell biology.

这是一个干细胞生物学领域的重要课题,至今仍未完全明确

耶鲁公开课 - 生物医学工程探索课程节选

It would completely dash any logical sense that Areopagitica still retains.

它完全冲撞了《论出版自由》里保留的所有逻辑性。

耶鲁公开课 - 弥尔顿课程节选