Annulus
n. 环, 环形物, 体环\\n[化] 环形缝; 环隙
🏥 医学释义
环形物，环形套管
🗣️ 情景例句
For when we build our campfire.
用来生营火的。
Life is long if you know how to use it.
如果懂得好好利用，生命就长了。
that I was a new boy in a huge school, and I would have been very pleased to be regarded as something so interesting as a problem.
我是一所大学里的一名新生，如果我当时真的被看成像一个问题那样有趣，我会感到很得意的。