beam candlepower

例句：

1. 1. The beam of the light fell on the table.
   光的光束落在了桌子上。
2. 2. The beams of the roof are made of wood.
   屋顶的横梁是用木头做的。
3. 3. The beams of the house were old and rotten.
   房子的横梁旧而腐朽。