Mona
n. [动]白腹长尾猴；莫娜（女子名）
🗣️ 情景例句
You're the best.
你是最棒的。
What are you thinking about?
你正在考虑什么？
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。