Contraflows
(contraflow 的复数) [机] 反流
🗣️ 情景例句
Oh, don't be silly, Arnie.
噢， 别傻了， Arnie。
He hit the ceiling at the news.
他听到那消息暴跳如雷。
So was born the echo-sounding apparatus, now in general use in ships.
这样就产生了目前各种船舶上普遍应用的回声探测仪。