Lasing
[计] 激光作用, 产生激光
🗣️ 情景例句
Take the time, Susan.
别那么忙， Susan。
I will be in between six and eight.
我6点至8点都在。
Really? So was my friend Bob White. Do you know him?
真的吗？我的朋友鲍勃·怀特也在中心学校。你认识他吗？