Toroid
[计] 环形线, 环
🏥 医学释义
环，环形线，复曲面，螺旋管
🗣️ 情景例句
Study hard and study everyday, if you want to master the English language.
如果你想精通英语的话，就得每天刻苦学习。
Do you have some envelopes?
你有信封吗？
The tent was full of water! They all leapt out of their sleeping bags and hurried outside.
原来帐篷里到处都是水！他们全都跳出睡袋，跑到外面。