1. C U 肌肉　(one of) the pieces of elastic material in the body which can tighten to produce movement, especially bending of the joints
2. U 力量；实力　strength or power, especially of the stated kind

　develop ～　使肌肉发达
　exercise ～　锻炼肌肉
　loosen ～　放松肌肉
　pull ～　拉伤肌肉
　facial ～　脸部肌肉
　military ～　军力
　strong ～　大力

　Physical exercises develop muscle.　运动强健肌肉。
　It'll take a lot of muscle to move this piano.　搬动这架钢琴得花很大的力气。
　Those large companies carry a great deal of political muscle.　那些大公司具有很强的政治力。

　vi. & vt.强取 use force to get a share of sth considered advantageous

　～ in　强占
　～ into　强行插入
　～ out of　逐出，赶出

　They muscled through a crowd.　他们用力挤过人群。
　I needed men to muscle chairs and tables.　我需要男人们来搬运椅子和桌子。
　A plane muscles its way through the sound barrier.　一架飞机强行通过音障。
　He was suddenly muscled aside as his fellows rushed out.　在他的同伙冲出去时，他被强行推到一边。

 ♣ muscle in　(v.+adv.)
　强行干预，强行介入；强行参与控制　use force to control or share control of (a ground activity)
　Our competitors have been trying to muscle in for some years.　几年来我们的竞争对手一直试图夺取利益。
　They muscled in on other's territory.　他们侵占了别人的地盘。
　Other criminals have tried to muscle in on the place.　其他罪犯一直想用强制手段夺取这块地盘。
 ♣ muscle into　(v.+prep.)
　强行插入　use force into sth
　He muscled into the queue.　他不排队强行加塞。
　The man wanted to muscle into the line.　那个男子想强行加塞儿。
　He tried to muscle his way into the conversation.　他硬插进来谈话。
　Even the years of military training had not muscled him into hardness.　甚至几年的军事操练也未曾使他增强体质。
 ♣ muscle out of　(v.+adv.+prep.)
　强行逐出〔赶出〕　use force to take out of
　The staff in this company have muscled Mr. Alger out of office.　该公司全体职员迫使阿尔杰先生辞职。
　He was muscled out of the organization.　他被强行逐出那个组织。