Brucellergin
布鲁氏桿菌过敏原
🗣️ 情景例句
Well, before I go to college,
嗯，在我进大学之前，
I'm short of hands.
我太忙了。
Ann, thanks a lot for asking me to your party. I'd love to come.
安，非常感谢你邀请我参加你的聚会。我很乐意去。