[count noun]too many demotions would weaken morale.

太多的降职变动会削弱士气。

How should I handle demotions on my resume?

我该怎么在履历上说明降级的事？

Rewards and penalties, promotions and demotions should be based on work performance.

要根据工作成绩的大孝好坏,有赏有罚, 有升有降.