连枷状胸的英文：
flail chest

flail是什么意思：
n. 连枷
vt.
vi. 用连枷打,打；乱摇或乱摆
The dying lamb fell, its legs flailing (about) helplessly. 小羊快要死了, 倒在地上四条腿又踢又蹬.
flail one's arms/hands above one's head
将双臂[双手]举过头顶摇动.

chest是什么意思：
n. 胸部，胸膛；大箱子

He knuckled me in the chest.
他用指关节敲击我的胸部。

The movement of his chest as he breathes.
他呼吸时胸部的起伏。

He was bare-chested and barefoot.
他袒胸赤足。

And the coughing will rack his ancient chest.
咳嗽会绞紧他的年老的胸膛。

The chest contained the personal belongings of a seaman.
箱子里装有一个海员的私人物品。