Do you want to grab a bite to eat?

你想一起吃点东西吗？

You want to go grab a bite to eat?

你要去随便买点吃的吗？

Wanna grab a bite to eat?

想要弄些东西来吃吗？

Let's grab a bite to eat.

让我们赶紧吃点东西吧。

Grab a bite to eat.

随便到外面吃点快餐。