n.下腹部；易受攻擊的地帶

The underbelly of the plane was seriously damaged in the emergency. 飛機(jī)的腹部在這起事件中嚴(yán)重受損。

The sick woman complains on acute pain in the underbelly. 患病婦女說她下腹劇痛。

The trade deficit remains the soft underbelly of the US economy. 貿(mào)易赤字仍是美國經(jīng)濟(jì)的軟肋。

The underbelly of the club at the minute needs to be slightly stronger. 這是俱樂部現(xiàn)在的弱點(diǎn)，而我們不得不變的更強(qiáng)壯些。