| 释义 |
beam¹ /bim; biːm/n [c] 1 a) a line of light shining from the sun, a lamp etc 光线，光束:◇the beam of the flashlight flickered and went out. 手电筒的光闪了一下就灭了。 b) a line of energy such as radiation or microwaves ［辐射能、微波等的］射束，射线 2. a long heavy piece of wood or metal used in building houses, bridges etc ［建筑物的］梁 3. a big happy smile 喜色，笑容 |