be busy with忙于…
be careful of爱惜，注意
be born of出生于…(家庭)
be curious to(do)很想(做)
be derived from由…得到
be capable of能够
be fed up厌烦
be m for适合，胜任
be free from没有...的，不受…影响的
be frightened at受...惊吓
be divided by被…除
be eager for渴望
be engaged in忙于，从事于
be famous for以…著名
be filled with充满
be fond of喜欢，爱好
be friendly to对…友好
be characterized by以…为特征
be combined with与…结合
be concerned about关心，挂念
be coupled with与...配合
be crowded with挤满，拥塞
be dependent on/upon取决于，依赖
be determined to(do)决心(做)
be different from与…不同
be divided into被分成
be eager to(do)急于要(做)
be equal to等于
be good for适于，在…期间有效
be identified as被认为是
be involved in包括…中，被卷入
be kind enough to(do)承…好意，恳请