小强喜欢夜间活动，所以如果你看见一只在晚上出没的话，就可以找出它们住哪。

Roaches are nocturnal so you'll be able to trace where they live if you see one wandering at night.

youdao

寂寞的心境犹如挥之不去的悲伤，但却有特定的所指；它是一种因无人出没于你那本该被关怀和深切理解所相互渗透的生活的悲伤。

A lonely mood is akin to a lingering sadness, but with a particular referent; it's sadness about not having someone in your life where caring and deep understanding is mutually felt.

youdao

至于如何应付鬼魂屋，方法各异；一个选择就是尖叫着跑出前门，但是你也能了解下在此出没鬼魂的底细。

As for what to do with a haunted house, that varies; running out the front door screaming is one option, but you can also get to know the spook in question.

youdao

You can pull the cord and your files should not use a different technology altogether.

你可以提取出没删除的,是用了一种不同的技术的。

哈佛公开课 - 计算机科学课程节选

Once you've got them together, then you can compute the efficient portfolio frontier without the riskless asset.

当你明确了这些参数后，就可以算出没有无风险资产情况下的,有效边界了。

耶鲁公开课 - 金融市场课程节选