他们不灰心英语

He is never discouraged in front of difficulties.

空格处填lose直译：别失去希望。

1Don't give up hope2don't be discouraged3Don't lose your hope例子：Don't lose your hope. Every dog has his day. 不要灰心，每个人都有转运的一天。 Don't give up hope; keep on trying. 不要灰心，继续努力。

lose your hope

Don't abandon hope.

come on! 或者 cheer up!