to not make as much progress as others in something
在某方面没有像其他人一样进展 (zài mǒu fāngmiàn méi yǒu xiàng qítā rén yīyàng jìnzhǎn)
"If you skip classes, you might fall behind in your studies."
"如果你跳过课，你可能会在学业上落后。" (rúguǒ nǐ tiàoguò kè, nǐ kěnéng huì zài xuéyè shàng **luòhòu**.)
to wait for something to happen before acting; to depend on
to make someone feel nervous or excited
to explore something deeply and thoroughly
to improve or increase after a slowdown
to do your fair share of the work
to suddenly start crying
