形容词 light-tight:

1. not penetrable by light

Lighthalln.莱特霍尔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 inducible promoter光诱导型启动子Light Air Defense System轻型防空系统light sensitive material感光材料light sensitive resistor光敏电阻器light armored protection轻装甲防护light - burnt magnesia轻烧氧化镁lighting power harmonics照明配电谐波light filtering material轻质滤料light-emitting element发光元件light petroleum fraction轻质石油馏分

1. Some objects do not allow light to go through them.
   有些物体是不透光的。
2. The ability to gather oxygen with its arm webbing enables it to live in the oxygen minimum layer of the ocean, where there is virtually no light penetration.
   其触手间的薄翼可以吸取水中的氧元素，这种能力使其能够在海洋里暗不透光的低含氧层中生存。