Downdraught
n. 倒灌风, 下向通风, 向下气流
🗣️ 情景例句
Hello.
你好！
At ease.
休息。
One moment we were walking along the top of a hill and now we could see no more than about thirty metres ahead of us.
一时间我们还在山顶上行走，而现在30公尺开外的地方我们都看不清了。