買不起的用法和樣例：
例句
-
這書要是你買不起新的，你或許能找到一本舊的。
If you can't afford a new copy of the book, perhaps you can find a second-hand one. -
我們要是買不起汽車，也就只好不用（汽車）了。
If we can't afford a car, we'll just have to do without (one). -
那時他們非常窮，買不起房子。
They were very poor at that time and couldn't afford a house. -
我買不起。
I can't afford it. -
我們買不起汽車，沒有車庫的事就更不必說了。
We can't afford a car, not to mention the fact that we have no garage.
