Backflow
n. 逆流, 回流\\n[医] 回流, 反流
🏥 医学释义
回流，返流
🗣️ 情景例句
I'm putting in my notice.
我要递交我的辞职报告。
No. I've been visiting relatives.
没有，我走亲戚去了。
Though a little suspicious this time, the policeman gave him the same answer.
虽然那位警察这次有点疑心，但还是对他作了同样的回答。