Radist
无线电导航系统, 无线电测距
🗣️ 情景例句
If you roughhouse with a cat, you're going to get scratched.
如果你喜欢和猫嬉戏，可能会被爪子抓伤。
An ambulance will be here in no time.
救护车马上就到。
In 1990?
1990年呢？