Bbi
abbr. 烧伤杀菌指数（burn bactericidal index）
🗣️ 情景例句
2, 3 , 1, 2, 3, pony, pony... 2 3 1 2 3
小马步 小马步 ……
Mike found it difficult to adjust at first, but he's used to studying at Harvard now.
刚开始迈克发现很难适应在哈佛的学习，但现在他已经习惯了。
but they seldom realize that they have brought this on themselves.
殊不知这是他们自找的。