蔬菜vegetables可数吗

vegetable表示蔬菜的种类时，是可数的；表示蔬菜这一整体概念时，是不可数的。

例如

We should often eat vegetable which is good for us.

我们应该经常吃蔬菜，这对我们有好处。

These vegetables can be grown from seed.

这些蔬菜可以撒籽栽种。

The vegetables were cooked to perfection.

这些蔬菜烧的火候恰到好处。

The vegetables were planted in neat rows.

蔬菜一行行种得整整齐齐。

Their diet consists largely of vegetables.

他们的日常饮食以蔬菜为主。

Their diet consisted largely of vegetables.

他们的日常饮食以蔬菜为主。