Seld
abbr. surface-emitting laser diode 面发射激光二极管
🗣️ 情景例句
Excuse me, ma'am.
对不起 夫人
He was at a loss for words.
他不知道该说什么好。
Is that all? He doesn't say very much,does he?
就这些吗？他没写许多，是吗？