an expert on losing
an expert on losing
an expert on和be expert in的区别
是be an expert in/at/on ,还是be expert in/at/on?
an expert in/on/at有什么区别
an expert in/at/on/with有什么区别?
I wanna be an expert on English,how I can do this?Is there a
He is an expert on computer .When it comes to computer ,he _
He considers himself an expert on the subject,in fact,he is
become an expert at 与become expert at 与
expert at/on/in 有什么区别
Soon he becomes dependent on the expert.这里的expert怎么翻译?
expert用法expert后面带介词in,at,on,有什么区别啊?