She had to concentrate on flexing her pectoral muscle, or the triceps, to power the arm.

为了给手臂提供力量，她不得不用力伸缩她的胸肌或者三头肌。

She had to concentrate on flexing her pectoral muscle or the triceps to power the arm.

为了给手臂提供力量，她不得不用力伸缩她的胸肌或者三头肌。

She had to concentrate on flexing her pectoral muscle or the trice ps to power the arm.

为了给手臂提供力量，她不得不用力伸缩她的胸肌或者三头肌。

This exercise develops literally every tract of the pectoral muscle, but requires some proper warm up.

这个练习几乎锻炼所有各部分胸肌，但事先需要热身。

He eventually hurt his pectoral muscle and rumor saying that he had to undergo an operation in hospital.

他最终会损害他的胸肌和谣言说他接受了手术治疗。

Objective Through research of anatomy of nerves dominating pectoral muscle and intercostobrachial nerves, In design a reasonable mode of operation of curing mastocarcinoma.

目的通过对支配胸肌神经及肋间臂神经的解剖学研究，设计一个合理的乳癌手术方式。