Thecodontian
a. 有槽齿的,槽齿类的
🗣️ 情景例句
I know.
我知道。
This is Shen calling.
我姓沈。
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。