be on a visit to sp 正游览、参观某地
be on business 因公 办事等
be on diet 节食
be on duty 值日、上班
be on fire 着火
be on holiday/vacation 在度假
be on sale 待售、拍卖
be on show 展览；上映
be on strike 罢工
be on the march 正在游行、正在行军
be out of fashion 过时、不流行
be out of order 没有秩序、乱
be out of reach ①够不着 ②无能为力
be out of work 失业
be popular among somebody 在……中流行
be popular with somebody 在……中流行
be popular in 红遍
be prepared for 为……作准备 接抽象事物
be present at the meeting 参加 会议
be proud of 以……自豪
be put to a new use 被用在了新的用途上
be ready for 准备好做……
be ready to do 准备好做……
be recognized as 被认作是
be reduced by 降低了…… 接数字、百分数
be related to 与……有联系
be responsible for 为……负责任
be rich in 在……丰富
be satisfied with 对……满意
be senior to 比……大
be set in 以……为背景
be short of 缺少
be shown into sp 被带到某地
be spun into thread 被纺成线
be strict in something 对某事严格要求
be strict with somebody 对某人严格要求
be successful in doing something 做……成功
be suitable for 适合
Be sure certain to do… 确信做某事 祈使句
be tired from something /doing 身体上 劳累、疲劳
be tired of something /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 something 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 somebody black and blue 把某人打得鼻青脸肿
beat somebody on the head 碰某人的头
beat somebody to death 打死某人
beat something flat 把……压平
become a success 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 somebody 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 somebody 两个人都……
both…not… 不都是…… 部分否定
break away from 脱离
break down ①分解；破裂 ② 汽车 抛锚
break in 打断……的话
break into pieces 打 破 成碎片
break off 折断、中断、罢工
break one's promise/break one's words 破坏某人的诺言、食言
break out 分裂、爆发
break the record 打破纪录
break the rules 违反规则
break up 分解
bring about 带来、造成