be able to(do)能(做)，会(做)

be absent from缺勤，缺课

be accustomed to习惯于

be active in积极于

be alive to发觉，感觉，对…敏感

be angry with对……发怒

be anxious for急切盼望，渴望

be about to(do)即将，正要

be abundant in富于，富有

be acquainted with与…相识，熟悉

be afraid of恐怕，害怕，担忧

be angry at因某事生气

be anxious about担心，为…担忧

be aware of意识到

be bad at拙于，不善于

be beside oneself忘乎所以

be badly off生活穷困

be bent on热恋于，一心想

be born in出生于……

be bound to(do)一定会，不得不

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