It did not have enough soldiers to stop any real attempt by Confederate forces to seize the city.

VOA: special.2009.08.20

And, in fact, you should stop noticing it after it's been in the environment for long enough.

事实上，如果它在环境中出现的时间足够长久的话,你就不该再去一直注意它了。

耶鲁公开课 - 心理学导论课程节选

If it's important enough for you to retain I'll stop and pause on it in class and discuss it in enough detail so you'll be able to learn it.

如果真的很重要到需要你们记住,我会在课堂上进行详细地讲解,这样你们就能掌握了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选