beam1/bim; biːm/n [C] 1 a line of light or energy〔光或能量的〕束﹐柱: +of the beam of the flashlight 手电筒的光束a laser beam 激光束2 a long piece of wood or metal used in building houses, bridges etc〔房屋﹑桥梁等的〕梁3 a big happy smile 喜色﹐笑容see box at见 SMILE1 方框
beam2v 1 [I] to smile very happily 眉开眼笑﹐面露喜色: +at Grandad beamed at us proudly. 祖父自豪地对我们微笑。2 [T] to send a radio or television signal 发射﹐播送〔无线电或电视信号〕: beam sth across/up/to etc sth News from any part of the world can be beamed to us by satellite . 世界上任何一个地方的新闻都可以通过卫星传送到我们这儿。