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be burned out住所被烧光 be busy with忙于 be careful of爱惜，注意 be born of出生于 be buried in沉思，陷入，专心于 be busy忙着 be busy about忙于 be bent on热恋于，一心想 be better off处境较好，情况好转 be born in出生于 be bound to一定会，不得不 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 careful to务必注意 be certain to一定，必然 be confident in对有信心 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 anxious to渴望 be aware of意识到 be bad at拙于，不善于 | 
