Ragg
[医][=rheumatoid agglutinator serum]类风湿凝集素血清
🗣️ 情景例句
I'm surprised they're not here.
我奇怪他们怎么没来。
He has gone to America.
他去美国了。[动作结束后的结果持续至今]
I want you to look at this material.
我要你看看这材料！