lighten up是什么意思？

when leaders lighten up and create a fun workplace, there is a significant increase in the level of employee trust, creativity and communicatio

Right. But that coach is too tough. She's got to lighten up a little. up up是什么意思？ UP是什么意思？ “up”是什么意思？ up是什么意思 UP是什么意思? what up,what up!是什么意思 turn up是什么意思 Wake up是什么意思 up close 是什么意思