be sharp at
英
美
- at prep.在;向，朝;处于…状态;在…远;（用于速度、比率等）以，达
- be v.有；在；是；到达；拜访
- sharp adj.锋利的；突然的；灵敏的；明显的；辛辣的；【音】升音阶的adv.准时地；突然地；偏高地
- She is good at designing eye-catching packages.
她擅长设计花俏的包装。
- Be sure to turn off all the lights when you leave.
他擅长写作。
- Tom is a great hand at painting.
汤姆精于绘画。
- After reading this book, you will be proficient in writing.
读完这本书，你会精于写作。
