Money was introduced so that we could buy things.

引入货币是为了让我们可以买东西。

It's generally cheaper to buy things in the shopping centre.

在购物中心买东西通常更便宜。

If you buy things you do not need, soon you will have to sell things you need.

如果你买不需要的东西，很快你就得卖掉需要的东西。

We must save the trees and not buy things made of ivory.

我们必须保护树木，不要购买象牙制品。

Once people had money to spend, they used markets to buy things.

一旦人们有了钱，他们就用市场来购买东西。

We use peso to buy things at the local market.

我们用比索在当地市场买东西。

It's a wast of money to buy things you don't need.

购买你不需要的东西是浪费钱。

It's a waste of money to buy things you don't need.

购买你不需要的东西是浪费钱。

Her acquisitive nature led her to buy things she didn't need.

她贪得无厌的本性使她买了很多不需要的东西。

You can use coins or bills to buy things from the slot machine.

你可以用硬币或纸币在自动贩卖机上买东西。