Callsign
n. 通信呼号
🗣️ 情景例句
We started by making safety equipment for many sports.
我们是以做运动产品的安全器材起家的。
Is the distribution of wealth uneven in your country?
在你们国家财富分配得均匀吗？
The clouds had come down so suddenly we had no warning.
乌云突然出现，我们丝毫没有觉察。