柯林斯詞典pectoral /?p?kt?r?l/ (pectorals) 1. N-COUNT Your pectorals are the large chest muscles that help you to move your shoulders and your arms. 胸肌[usu pl] 返回 pectoral劍橋詞典of the chest 胸部的 He flexed his pectoral muscles . 他活動(dòng)了一下胸部肌肉。 返回 pectoral