Ectocrine
n. [生]外界微量影响物
🗣️ 情景例句
I'm a big movie fan.
我是个电影迷。
Why aren't you happy?
为什么无聊呢？
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。