be sure of坚信，确信
be sure to一定，必定
be taken aback吃惊
be terrified at被吓一跳
be through with结束
be tired of厌烦;对...厌倦
be torn open被撕开
be unconscious of不知道
be unfit for不适合，不胜任
be surprised at对感到惊奇
be provided with装备有
be ready for为...准备好
be regarded as被认为是，被当做是
be rich in富于
be rid of除去，摆脱
be satisfied with对...满意，满足于
be short for是的缩写
be sick for渴望
get used to习惯于
be well up in精通，熟悉
be willing to乐意
be grateful to感谢，感激
be independent of脱离而独立，与...无关
be interested in对...感兴趣
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