lightn.光；光线；灯；打火机；领悟；浅色；天窗adj.轻的；浅色的；明亮的；轻松的；容易的；清淡的v.点燃；变亮；照亮adv.清楚地；轻便地light rays光线

1. This sheet of glass doesn't allow good light transmission, please give me another one.
   这块玻璃的透光性不太好，您再给我换一块吧！