The king of the forest feels Jansen's words are easy to let the team lose morale, very angry, put Jansen locked up.

森林之王感觉詹森的话容易让队伍失去士气，非常愤怒，就把詹森关起来了。

youdao

A reputation as a morale-killer can lose you your job.

一个个“士气杀手”的名声可能让你失去工作。

youdao

Employees' morale will be affected and they may lose the willingness and motivation to work in the company.

员工的士气会受到影响，他们可能会失去在公司工作的意愿和动机。

youdao

First of all, it is a disease where the patient can contribute a great deal of help himself, if he or she can retain their morale and their hopes and not lose that.

BBC: News Online