Noun:

1. a measure of the visible electromagnetic radiation

light up点亮； 照亮；点燃（香烟等），开始抽烟；点灯，开灯；（使）容光焕发，（使）面露喜色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-headedadj.头晕的；轻浮的light-tracern.曳光弹light stimulus光刺激,光激励light aperture日光照泌,光孔径lightsensitiveadj.光敏的(感光的)Lighting space照明空间lighting-off停止照明,灭灯light industryn.轻工业light solution光解light workshop轻活工场(作业疗法)