这个人很好用英语可以用 "This person is proficient in Engpsh." 来表示。
"Proficient" 是一个形容词，来源于拉丁语 "proficere"，意思是"熟练、精通"。
例句1: "She is proficient in Spanish and can speak it fluently." (她精通西班牙语，能说得很流利)
例句2: "He is proficient in programming and can handle complex projects easily." (他精通编程，能轻松处理复杂项目)