be confident in 对有信心
be characterized by 以为特征
be clever at 擅长于
be combined with 与结合
be composed of 由组成
be concerned about 关心，挂念
be curious to 很想(做)
be dependent on/upon 取决于，依赖
be determined to 决心(做)
be different from 与不同
be eager for 渴望
be eager to 急于要(做)
be equal to 等于
be famous for 以著名
be fond of 喜欢，爱好
be free from 无的，摆脱了的.
be friendly to 对友好
be glad to 乐于(做)，对感到高兴
be good at 善于，擅长
be good for 适于，在期间有效
be grateful to 感谢，感激
be independent of 脱离而独立，与无关
be indispensable for 对必不可少的
be interested in 对感兴趣
be kind enough to 承好意，恳请
be confident in 对有信心
be characterized by 以为特征
be clever at 擅长于
