Luminous efficiency
[化] 光视效率; 光视效能
🧩 词语组成解析
🗣️ 情景例句
But if they don't, I'll adopt her.
如果找不到，我就收养 。
A spot is most seen on the finest cloth.
最清洁的布上，污点特别显眼。
All the students are expert drivers, but before they drive any of the buses, they will have to pass a special test.
所有的学生都是开车的能手，但在驾驶公共汽车之前，他们必须通过一项专门测验。