短语:to be good atto be expert inbe good atbe clever atbe adept inbe adept atexpert athad a good head forgreat atbe accomplished inbe strong in例句:1她擅长绘画。She is clever at painting.2他擅长心算。He is good at mental arithmetic. 3他擅长打排球。He excels at volleyball. 4她擅长设计花俏的包装。She is good at designing eye-catching packages. 5他擅长养鸟。He has a touch with birds. 6她不擅长跳舞。Dancing is not her strong point.