Vacujet
真空捕尘凿岩机
🗣️ 情景例句
Hello. Is this the Old Country Inn?
喂 ，是Old Country Inn吗？
I have come to make sure that your stay in Beijing is a pleasant one.
我特地为你们安排使你们在北京的逗留愉快。
He suggested that a double railway-tunnel should be built.
他提议建一条双轨隧道，这样就解决了通风问题。