Hantigen
鞭毛抗原
🗣️ 情景例句
I think I've caught a cold.
我觉得我感冒了。
Her children are a disappointment to her.
她的孩子让她感到失望。
Pardon? Would you please say that again more slowly?
对不起，请你慢点儿再说一遍好吗？