帮忙翻译一下这个句子 谢谢^^

His researches including wide range of fields.

“His research covers a wide field”是错误的，形容广泛的领域的话··也就是各种各样的领域，这种时候领域就要用复数形式

His research covers a wide range of fields.

His research includes extensive fields.

His research holds extensive provinces.

His study embraces very many fields.

his research covers wide realm.