Backflowing
n. 【流体力学】回流
🗣️ 情景例句
This is a rough group.
这是一群粗野的孩子。
I'm afraid you will catch the Influenza.
我怕你会感染到流行性感冒。
I'd like to congratulate you very much. That was a wonderful concert.
衷心祝贺你。这场音乐会真是太好了。