sing the blues

• v. 垂头丧气

sing the blues的用法和样例：

例句

用作动词 (v.)

1. She looked a bit down in the mouth.
   她看上去有点垂头丧气。
2. He was regarding with dismay the cup on the table.
   他垂头丧气地盯着桌上的杯子。