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be based on 以……为基础、以……为根据
be better off 境况好
be blind in one eye 一只眼睛失明、独眼龙
be blind to 对……视而不见
be busy doing 忙着……
be busy with 忙着……
be careful 小心
be caught in 被困住、绊住
be concerned about 关心
be connected with ……与……有联系
be content to do 甘愿做某事、愿意做某事
be content with 对……满足
be crowded with 挤满了
be dangerous ……(对……)构成威胁、是危险的
be deaf to 对……听而不闻、充耳不闻
be disappointed in sth. 对某事(物)失望
be disappointed with sb./sth. 对……失望
be doing when 正要做某事时，突然……
be doing 表达某种语气、感情，如喜爱、赞美、厌恶、痛恨、批判等
be done away with 结束、结果
be dressed in 穿……
be due to do 预计……会怎样
be due to sth. 由于、应归于
be dying for 渴望
be dying to do 急切去做……
be eager to do 盼望去做……
be engaged in 忙于、致力于
be engaged to 与……订婚
be equal to(介词) 与……相等
be expert in/at doing 擅长于……
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