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
It's not necessary to whisper, Harry.
没有必要压低声音说话， Harry。
What have you decided?
你决定了什么？
He told me that he would give up his job.
他告诉我他要辞职。