Vacuscope
真空仪
🗣️ 情景例句
Oh, I'm glad that's over.
噢 我真高兴终于结束了。
Contact me by telephone.
电话跟我联络。
All the students are expert drivers, but before they drive any of the buses, they will have to pass a special test.
所有的学生都是开车的能手，但在驾驶公共汽车之前，他们必须通过一项专门测验。