Coiling block
[化] 卷筒
🧩 词语组成解析
[医] 螺旋
block
[blɑk]
n. 块;街区;<英>大楼，大厦;障碍物，阻碍;
vt. 阻止;阻塞;限制;
🗣️ 情景例句
Thanks, Mom.
谢谢，妈。
Have some decency!
正经点！
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。