pay cost 与spengd 的区别

这三个词语都有花费的意思

这本字典花了我50元。

The dictionary costed me fifty yuan.

It costed me fifty yuan to buy the dictionary.

I spent fifty yuan on the dictionary.

I paid fifty yuan for the dictionary.

不过 spend 还有花时间的意思
I spend 1 hour reading English each day.
我每天花一小时读英语。