B 开头单词
be bound to do something 一定做某事， 必须做某事
be bound to do 必定，一定
be bound to be 一定是 注定是
be bound in （封面）是用……装订的 被束缚于……
be bound for 开往
be bound by one's honesty 人格担保
be bound by 受…约束；由…联系起来
be both ashamed and melancholy 又羞又闷
be borne by 由…负担
be born yesterday 没有经验的，容易受骗的；不懂世故的（常用于否定形式）
be born with 天生具有
be born out of 出生于…… 在……中产生
be born into 出身于；出生于…的家庭
be born 出生于
be bored with 对…感到厌烦
be bored 感到厌烦
be bootlicker 吮痈舐痔