n.袖寬；二頭肌（胳膊上段的肌肉）
For example, if you bend your arm, your bicep muscles contract and bulge out. 舉例來(lái)說(shuō)，如果你屈服你的手臂，你的二頭肌肌合同和脹出。
He had three bandages covering three different wounds on his right arm, from his bicep to his forearm. 他右手臂從二頭肌到前臂共有三個(gè)不同的傷處系著繃帶。
n.二頭肌
n.二頭肌
