be good at

英 [biː ɡʊd æt] 美 [biː ɡʊd æt]

• 擅长于

be good at的用法和样例：

例句

1. Both Jane and Cherry are good at English.
   两个人都擅长于英语。
2. He's good at volleying it back to his opponent.
   他擅长于截击球来反击他的对手。