基本解释n.胸肌abbr.职业教育中心(=Professional Education Center)同根派生 PEC相关词英汉例句用作名词 (n.)On the plus side, bench pressing with a wide grip does increase the intensity of pec contraction during the exercise.从积极面来看，宽握卧推增加胸肌群的专注强度。PEC更多例句