n (1) 乳房(either of a woman's two milk-producing parts， or the smaller parts like these on a man's body)[C]：a baby at the/its mother's～吃奶的婴儿;give a child the～给孩子吃奶;cancer of the～乳(腺)癌;be fed from her left～吮她的左乳;

(2) 胸部(脯)(upper part of the front surface of the body between the neck and the stomach)[C]：beat one's～in agony痛苦地捶胸;clutch/clasp/hold sb to one's～把某人搂在胸前;The bullet pierced his～.子弹穿进了他的胸膛。〖同〗chest，bosom;

(3) (衣服之)胸襟(part of a garment covering one's breast)[C]：a soldier with medals pinned to the～of his coat一个胸前别着奖章的士兵;～pocket胸前口袋;

(4) 胸脯肉(part of an animal corresponding to the human breast， eaten as food)[C，U]：chicken～鸡胸肉;～of lamb羊胸肉;

(5) 心(part of the body where sb's feelings are; heart)[C]：have a troubled ～心里苦恼;with conflicting feelings in one's～带着矛盾的心情;His～was full of pride.他心中充满自豪。the creation of national pride in the～s of Englishmen英国人心中民族自豪感的产生;〖同〗heart;

→′breastbone n 胸骨;′breastfeed v 喂(母)奶;͵breast-′high adj & adv 齐胸高;͵breast-′deep adj & adv 齐胸深;′breastplate n (护)胸甲;′breast-stroke n 蛙泳;′breast-work n 胸墙;

vt (1) 用胸脯触及(touch (the tape at the winning-post) with the breast)[T+n](fml)：The runner～ed the tape.赛跑运动员用胸部触线。

(2) 迎接，面对(face and move forward boldly against)[T+n](fml)：The ship～ed the waves.船破浪航行。He～ed every hurdle in his path.前进路上的每一障碍他都泰然处之。～the storm of life勇敢面对人生的风暴;

(3) 到达……的顶部(come to the top of)[T+n]：～a hill/a rise爬上小山/斜坡;As we～ed the hill， we saw the enemy in the distance.我们到达山顶时，看见了远处的敌人。

【辨异】breast与bosom和chest的区别见BOSOM。