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

Okay. This is only the first mention of Galileo in the poem and, as you will see if you're careful in looking at your footnotes in the Hughes, appears two other times within the later similes in the poem, always in a simile.

这只是此诗中第一次提到伽利略，如果认真读的话，会发现更多,特别是在休斯版的脚注里，在后面的比喻里伽利略又出现了两次，他总是出现了比喻里。

耶鲁公开课 - 弥尔顿课程节选

How would it strike you if you knew nothing about it, if you had never heard of it before, if you open up the covers of this book for the first time?

如果你对新约一无所知，如果你对新约为所未闻，如果这是你，第一次翻开新约，会有什么感觉？

耶鲁公开课 - 新约课程节选

I think that's probably, if we can get one more.

我认为这是可能的，如果我们能再来一次。

麻省理工公开课 - 化学原理课程节选

Actually for that, I can just use, if I'm lucky, function F5, which didn't work, so let me try it again,here we go.

实际上这一次，我是想用用，如果我够幸运的话，用下F5，噢，怎么不灵，让我再试试，好了。

麻省理工公开课 - 计算机科学及编程导论课程节选