Bfv
abbr. bovine factor V 牛凝血因子V
🗣️ 情景例句
I'll have to stand up and let the elderly lady have my seat.
我得起来把座位让给这个老婆婆。
Which one is the longest river in China?
中国哪条河流最长？
Hello, Sam. Come in.
你好，萨姆。进来吧。