🗣️ 情景例句
Yes. This is Richard Stewart.
是的。我是Richard Stewart。
How many passengers were on the train?
在火车上有多少旅客？
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。