音标：[bi:m]
n. 横梁, 杆, 光线, 容光焕发
vi. 用梁支承, 微笑, 射出光线
vt. 照耀, 感到欣喜
【计】 束
【医】 束, 柱, 梁架(牙)
相关词组:
on the beam
on one's beam-ends
off the beam
在线英汉词典

beam的短语、例句：

beam n 1 long piece of wood, metal, concrete, etc, usu horizontal and supported at both ends, that carries the weight of part of a building or some other structure 梁. 2 (a) any of the horizontal cross-timbers of a ship, joining the sides and supporting the deck 船梁（船上连接两舷并支撑甲板的横木）. (b) breadth of a ship at its widest part 船宽（船身最宽部分的距离）. 3 horizontal bar of weighing-scales from which the pans hang 衡器上悬吊秤盘的横杆. =>illus at scale 见scale之插图. 4 ray or stream of light or other radiation (eg from a lamp or a lighthouse, the sun or the moon) （灯、灯塔、日月等的）光线、光束或其他射线
the beam of the torch, searchlight, etc 手电筒、探照灯等的光束
The car´s headlights were on full beam, ie not dipped to avoid dazzling other drivers. 那辆汽车的前大灯都开著（未能为防止将其他司机眼睛照花而放低前大灯）. 5 bright and happy look or smile 欢快的表情; 微笑
a beam of pleasure 一丝笑容. 6 series of radio or radar signals used to guide ships or aircraft （为船只或飞行器导航的无线电或雷达的）信号流. 7 (idm 习语) broad in the beam => broad1. off (the) `beam (infml 口) mistaken; wrong 错误的; 不对
Your calculation is way off beam. 你的计算大错特错. on the `beam (infml 口) on the right track; correct 正确的; 对. beam, v 1 (a) [I] (of the sun, etc) send out light and warmth （指太阳等）发光, 发热. (b) [I, Ipr] ~ (at sb) smile happily and cheerfully 愉快地微笑
The winner beamed with satisfaction. 获胜者满意地笑了. 2 [Tn, Tn.pr] ~ sth (to...) (from...) broadcast (a message, television programme, etc) 播送（消息、电视节目等）
The World Cup Final was beamed live from Britain to Japan. 世界杯决赛从英国向日本作了实况转播.