🗣️ 情景例句
Really, Grandpa?
真的， 爷爷？
Who is the guy over there?
那边那个人是谁？
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。