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
In my personal opinion, I am against the plan.
依我个人的意见，我反对那个计划。
Please make sure that the goods be protected from moisture.
请保证货物不受潮。
Are we going there by bus?
我们要乘公共汽车去吗？