Be sure(certain) to do… 确信做某事(祈使句)
be tired from sth./doing (身体上)劳累、疲劳
be tired of sth./doing 厌倦……
be tired out 筋疲力尽
be to blame (应该)受责备
be to do 准备做……
be trapped by (the fire) 被(火)围困
be treated as 把……当作……对待
be under construction 建设中
be unwilling to do 不愿去做
be up to ①高达、达到 ②达到境界、进入角色 ③从事、忙于
be well received 接受效果好、广泛接受
be willing to do 盼望去做……
be worried about 为……担心
be worth doing 值得……
be worth sth. 值多少
be worthy of 值得
be/become known as 作为……而出名
be/become widely accepted 被广泛的接受
beat sb. black and blue 把某人打得鼻青脸肿
beat sb. on the head 碰某人的头
beat sb. to death 打死某人
beat sth. flat 把……压平
become a success (人或事情)成功
become separated 分开
before all 尤其、特别
before long 没过多久(常用于将来时、过去时)
begin with 以……开始
believe in ①信赖、信任 ②信奉、信仰
belong to sb. 属于
benefit from 从……获取利益、好处
beyond reach 够不着;找不到、消失
beyond that 除了那个以外
beyond the sea 在海外
black out 昏迷、神志不清;停止、中断
black tea 红茶
blood bank 血站、血库
blow away 吹走
both of sb. 两个人都……
both…not… 不都是……(部分否定)