Arthrocentesis
关节穿刺术
🗣️ 情景例句
What classes are mandatory for your major?
你的专业什么课是必修的？
With a thrill of horror the children watched the monster movie.
在恐惧的颤抖下，孩子们观赏着怪兽电影。
She is standing in the front of the bus.
她站在公共汽车的前部。