你可以告诉他从容不迫是 行止舒缓得度,无急迫之态。但是在领导面前说从容不迫一般指做了错事面不改色，意在告诉领导自己犯错了，所以一般不能说。

You can tell him that taking time off is a kind of slow and calm way of doing things without urgency. But speaking of taking time in front of the leader usually means that he has done something wrong without changing his face