musculus biceps femoris 基本英英例句 股二头肌 Noun: the biceps muscle of the thigh; it flexes the knee and rotates the leg laterallyChanges in proteins of Semimembranosus and Biceps muscles mainly happened during curing and fermentation.股二头肌的蛋白质降解主要是在腌制期和发酵中后期。