Ultraphonic
超声的, 超听的
🗣️ 情景例句
That's why the new community center is a good idea.
这就是为什么说新的社区中心是个好主意。
How could you do this?
怎么可以这样？
The most frightening thing of all was that not a sound could be heard.
最令人害怕的是到处没有一点声音。