a (wide) variety of+  複數名詞            各式各樣的....

= a wide selection of+ 複數名詞

= a wide range of+ 複數名詞

= various kinds of+ 複數名詞

例:

The store carries a wide variety of goods.

例:

The meat packing industry is focused on producing meat for human consumption, but it also yields a variety of by-products such as hides and feathers.