Setverify
设置验证
🗣️ 情景例句
Let's talk business.
我们来谈谈正经事。
Where can I get my baggage?
我到哪里去拿我的行李呢？
This would solve the problem of ventilation, for if a train entered this tunnel, it would draw in fresh air behind it.
因为如果有列火车开进隧道，它就把新鲜空气随之抽进了隧道。