diversity可数吗?

　　Many employers seek diversity in their staffs.

　　很多雇主寻求雇员的多样性。

　　Conservationists are mostly wedded to preserving diversity in nature.

　　自然环境保护主义者大多致力于保持物种的多样性。

　　If you walk around the environs of Jermyn Street, you will find more diversity.

　　如果在杰明街附近走走，你会发现更多多样化的东西。