tact

The manager used great tact when explaining to the employee why they didn't get the promotion.

(Chinese) 经理在向员工解释为何没能晋升时，表现得非常得体。

Resolving a diplomatic crisis requires a combination of firm resolve and quiet tact.

(Chinese) 解决外交危机需要坚定决心与低调得体的处事技巧相结合。