Heparitin
类肝素, 乙酰(型)肝素
🗣️ 情景例句
Well, I'd describe it as a book which is a ...
嗯， 我会把这本书形容一幅……
Hold on.
等一会儿。
'I was in my office as usual,' answered the Ambassador.
“我和往常一样，在办公室里，”大使回答说。