to get yourself ready for something
为某事做好准备 (wei mou shi zuo hao zhun bei)
"I like to prep for big presentations the night before."
"我喜欢在前一晚prep for大型演示。" (Wo xihuan zai qian yi wan **prep for** daxing yanshi.)
to join a conversation or chat briefly
to spend a lot of time with a particular group of people
to extend emotional support to help someone move on
to ensure different branches follow the same plan
to steal something and run away
to develop or improve international agreements that already...