Hydropneumatics
液压气动学
🗣️ 情景例句
I'll drive you to the station, dear.
我开车送你到车站去。
Who is the auther of this essay?
谁是这论文的作者？
They were expecting a valuable parcel of diamonds from South Africa.
他们正期待从南非来的一个装着钻石的贵重包裹。