Hemoglutinin
凝血素
??? 情景例句
OK. We'll ring you up at 6:00 a.m. tomorrow.
嗯，我們會在明天6點整叫您。
Stop looking for excuses.
不要再找借口了！
How can I climb up that wall! I wish I were a bird!
我怎么能夠爬得上那堵墻？我要是一只鳥就好了！