be through with 结束
be tired from 因而疲乏
be tired of 厌烦;对厌倦
be tired out 疲倦极了
be true to 适用于
be unconscious of 不知道
be unequal to 无法胜任的
be unfit for 不适合，不胜任
be useful to 对有用
be well up in 精通，熟悉
be wild with jay 欣喜
be willing to 乐意
be worried about 为而担心
be worse off 处境较坏，情况恶化
be worth 值得(做)
be wrong with 有点毛病，有些不舒服
其他词组和固定搭配
above all 首先，尤其是
after all 终究，毕竟，究竟
at all [用于否定句]丝毫，一点
all but 几乎，差不多;除了都
all over 遍及，到处
in all 总共，合计
not at all 一点也不
leave alone 让独自呆着;不打扰，不干预