Emss
[医][=emergency medical services system]急救医疗服务系统
🗣️ 情景例句
John is tied up at the present time.
John现在有事。
I know the boy whose father is a merchant.
我知道那个男孩的父亲是商人。
the message to its home planet is barely halfway there.
那么这个信号在发回到原来的行星途中刚刚走了一半路程。