Colofixation
[医] 结肠固定术
🗣️ 情景例句
Do I know you?
我认识你吗？
Who assumes shipment cost?
谁负担运费呢？
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。