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
I'm glad to have met you.
非常高兴认识你。
All things are difficult before they are easy.
凡事都是先难后易。
Yes, Jeanne, I brought a necklace to you. It was exactly like your necklace, but it was a different one. It cost us thirty-six thousand francs.
是的，让娜。我还给你的那一条项链，完全像你原来的那条一样，但那是另外的一条。它花了我们36000法郎。