Optical emitter
[计] 光发射体
🧩 词语组成解析
n. 发射体, 发射极\\n[计] 发射极; 发射器
🗣️ 情景例句
Terrific!
太棒了！
A man becomes learned by asking questions.
要长学问，就得多问；多问则业精。
Check the prices before you decide whether to buy one.
先把价格核对一下，再决定该不该买。