The doctor examined his underbelly.

医生检查了他的下腹部。

He felt some pain in his underbelly.

他感到下腹部有些疼痛。

She has a small scar on her underbelly.

她的下腹部有一个小疤痕。

After exercising, his underbelly was a bit sore.

运动后，他的下腹部有点酸痛。

She gently stroked the baby's underbelly with her hand.

她用手轻轻抚摸着宝宝的下腹部。

Like cigarettes and coffee with the underbelly.

像下体的香烟和咖啡（？）

Perfectionism is often the underbelly of the fear of failure.

完美主义常是害怕失败的弱点所在。

Mintz has gotten a rare glimpse at the underbelly of tireless ambition.

敏茨获得了对不知疲倦抱负”灰色角落“一瞥的难得机会.

Your robot infantry will all lock into the underbelly of the enormous transport.

你的机器步兵会全部挂在大型飞行器的底下.

The underside of its legs, its underbelly, and even underneath the base of the tail.

腿的下部，它的下腹部，甚至还有尾巴基部的下侧。