hey

Hey! Watch out for that wet patch on the floor before you slip and fall.

(Chinese) 嘿！当心地板上那块湿的地方，别滑倒了。

Hey, I haven't seen you around here for months; where have you been traveling?

(Chinese) 嘿，我有好几个月没在这儿见到你了；你这段时间去哪儿旅游了？