purpose？

What do you think is the purpose of advertisements?

你認為廣告的目的是什么？

This is how we address that purpose of education, to give students an opportunity to apply in practice what they have learnt.

這就是我們如何實現教育的目的，讓學生有機會將所學應用于實踐。

But its purpose? For that we have to ask what is the purpose of thought.

但要問這有什么目的性，我們就得先問問自己思想的目的是什么。