If we have a high frequency, what about the wavelength, long or short? All right. Good. So we should always be able to keep these relationships in mind.

如果频率高，那波长是长还是短？,好，不错，我们要记住这些关系,类似的。

麻省理工公开课 - 化学原理课程节选

this is really a good pattern to keep in mind.

这是一个很好的句型。你应该记下来。

I should have 课堂 - SpeakingMax英语口语达人

A good example to keep in mind is the idea of a mule.

大家可以记住一个很好的例子，那就是骡子。

麻省理工公开课 - 化学原理课程节选