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 proud of all my grandchildren, Mr. Carlson.
我为我所有的孙子孙女感到骄傲 Carlson先生。
The effect speaks, the tongue needs not.
事实胜于雄辩。
At that moment, a large black car with four officers inside it, stopped at the camp gates.
正在此时，一辆黑色大轿车在军营门口停了下来。里面坐了4个军官。