Sdm
空分复用
🗣️ 情景例句
They'll be at your door within a few minutes.
他们会尽快送到你的门口。
No. That's nog good either. But give me your number and I'll call you if somebody cancels.
不。也不行。不过请你把电话号码给我，如果友人取消约会，我就打电话通知你。
from which can be seen the strata the drill has been cutting through.
从中能看出钻头所钻透的地层。