be connected with与…有关
be covered with被…覆盖
be curious t0(do)很想(做)
be derived from由…得到
be capable of能够
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 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