Optical shutter
[计] 光闸
🧩 词语组成解析
🗣️ 情景例句
first thing in the morning.
这是我明天早上的第一件事。
His foot is wounded, Does it hurt?
他的脚受伤了，疼不疼？
The word justice is usually associated with courts of law.
“正义”这个词常常是同法庭连在一起的。