n.袖宽；二头肌（胳膊上段的肌肉）
For example, if you bend your arm, your bicep muscles contract and bulge out. 举例来说，如果你屈服你的手臂，你的二头肌肌合同和胀出。
He had three bandages covering three different wounds on his right arm, from his bicep to his forearm. 他右手臂从二头肌到前臂共有三个不同的伤处系着绷带。
n.二头肌
n.二头肌
