Diasonograph
超声诊断仪
🗣️ 情景例句
That was not the case.
事实并非如此。
Whe angry, count ten before you speak; if very angry, a hundred.
怒时数十再说话，大怒数百方开言。
A simple experiment will help us a little further.
再做一个简单的实验可以帮助我们进一步理解这个问题。