Praetrsonics
极超短波晶体声学, 特超声(学)
🗣️ 情景例句
Is this the window for claiming parcels?
这是领取包裹的窗口吗？
I certainly didn't intend to cause you so much inconvenience.
我当然不打算引起你如此多的不方便。
No, we are not.We are Danish.
不，我们不是瑞典人。我们是丹麦人。