So, remember when you're looking at your periodic table, don't forget about the lanthanides, sometimes they come into play.

因此，要记住，当你在看元素周期表时，不要忘了镧系元素，有时候也会用到它们。

麻省理工公开课 - 化学原理课程节选

Until we say something more, it's not clear that we shouldn't just, all right, note it, store it away, and forget about it, just like the facts about the state capitals.

直到我们说了更多之前，也不一定说，我们不应该，记下它，把它收起来，然后忘记它，正如关于州首府的事实一样。

耶鲁公开课 - 死亡课程节选

Well, don't forget it, but read about.

这一点不用去记,但是要自己看书

耶鲁公开课 - 欧洲文明课程节选