biceps muscle of arm

• 肱二头肌

biceps muscle of arm的用法和样例：

例句

1. The bodybuilders contracted their biceps in unison.
   健美运动员们一起收缩肱二头肌。
2. He gave his biceps a flex to impress the ladies.
   他收缩他的肱二头肌以吸引那些女士们的目光。