underbelly

1. N-COUNT The underbelly of something is the part of it that can be most easily attacked or criticized. 弱點(diǎn)

I know where his soft underbelly is, and that's his material possessions. 我知道他的弱點(diǎn)是什么，是他的財(cái)產(chǎn)。

2. N-COUNT The underbelly of an animal or a vehicle is the underneath part of it. 腹部

The missiles emerge from the underbelly of the transport plane. 導(dǎo)彈從運(yùn)輸機(jī)的腹部發(fā)出。