可以加表示人的名词或代词，中文意思是，使高兴高兴起来使振奋

例如

我觉得他太想念她了。你也许能使他振作起来。I think he misses her terribly. You might cheer him up.

他们需要有一个休假使他们振作起来。They need a holiday to cheer themselves up.