Transmittivity
(非散射介质单位厚度的)透射率, 透射系数
🗣️ 情景例句
You'll never guess what I heard.
你永远也猜不到我听说了什么。
Practice what you preach.
言必行。
He's only forty-one years old, and he has already been to nearly every country in the world.
他只有41岁，但他却过世界上几乎每一个国家。