be in low spirits 垂头丧气

“垂头丧气”，汉语成语，形容因失败或不顺利而情绪低落、萎靡不振的样子。可以翻译为“hang one's head in dismay，be in low spirits，lose one's spirits”等。

例句：

一群人垂头丧气地站在那儿等着吃饭。

A group of downcast men stood waiting for food.

小男孩垂头丧气地走出了学校。

The little boy walked out of the school with his head and shoulders hanging down.