Backflow
n. 逆流, 回流\\n[医] 回流, 反流
🏥 医学释义
回流，返流
🗣️ 情景例句
It's nice to meet you.
很高兴见到你 。
From all listed prices we allow a discount of 10 percent on orders received on or before 31st May.
5月31日或此前收到的订单，我们都按价目单上的价格给10%的折扣。
Oh. Not very far.
呵，不是很远。