Spirobindene
[化] 螺二茚
🗣️ 情景例句
You never know what you can do till you try.
除非尝试，否则你永远都不知道你有何价值。
Doubt is the key of knowledge.
怀疑乃知识的钥匙。
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。