Soon he becomes dependent on the expert.这里的expert怎么翻译?

Soon he becomes dependent on the expert.这里的expert怎么翻译? fertility expert 怎么翻译 an expert on和be expert in的区别 He considers himself an expert on the subject,in fact,he is an expert on losing expert的意思是什么? expert的形容词是什么? 请帮忙翻译：He is an expert in sign language. the expert who says things are very good 对吗 怎么翻译 be expert in与be expert at 的区别 financial 和 expert 的音标 He is an expert on computer .When it comes to computer ,he _