Light quantity
[计] 光通量
🧩 词语组成解析
light
[laɪt]
n. 光;发光体;电灯;点火器;
adj. 轻的;明亮的;浅色的;少量的;
v. 点燃;照亮;用光指引;
adv. 轻地，轻装地;
🗣️ 情景例句
There's Mother and Grandpa ...
有妈妈和祖父呢……
When did you graduste?
你什么时候毕业的？
He devoted his life to the study of science.
他把毕生献给科学研究。