Vehic.
[医] 赋形剂; 媒介物
🗣️ 情景例句
There is an emergency. Please send a fire engine.
这有火灾，请尽快派消防车来。
Which umpire will referee the baseball game?
不知道哪一个裁判要执法这场棒球赛？
We tell river all our secrets.
我们向那条河倾诉我们的秘密。