Hirudine
[醫(yī)]水蛭素
??? 情景例句
Where are you going during Summer vacation?
暑假你打算去哪兒？
Recently, I have learned a lot of new things about myself.
最近，我學到了許多自己以前不明白的事理。
There are eighteen floors in the building, and he lives on the fifteenth floor.
這幢大樓有18層。他住在第15層。