Ragg
[医][=rheumatoid agglutinator serum]类风湿凝集素血清
🗣️ 情景例句
It's the world's largest island, but it's also the world's smallest continent.
它是世界上最大的岛屿，同时也是世界上最小的洲。
How long have you lived here?
你住在这里多久了？
Good afternoon, Li Lei! Nice to meet you. How do you do?
你好。见到你很高兴。