empty
- adj. 空的；无意义的；无知的；徒劳的
- vt. 使失去；使…成为空的
- vi. 成为空的；流空
- n. 空车；空的东西
词组搭配
be running on empty
have exhausted all of one's resources or sustenance
耗尽资源
empty vessels make most noise ( 或 sound)
(proverb)those with least wisdom or knowledge are always the most talkative
(谚)一瓶不响，半瓶晃荡