My dad always used to carry a lot of loose/small change in his pocket.

我爸爸过去总是在口袋里带很多零钱。

I havent you got any small change.

难道你没有零钱吗。

He said I am the people who takes the opportunity of buying newspaper changing small change.

他说我是借买报纸之机破零钱的人。

Five twenties, five tens, and the rest in small change, please.

5张20元, 5张10元, 其余的请给我小零钱.

Small change means metal coins of not much value, like nickels which are worth five cents.

零钱是指价值不大的金属钱币, 比如五分镍币.

This strategy can easily be incorporated by large supermarket chains and department stores, thereby actively engaging their customers to help make a big difference with small change.

大型超级市场连锁店和百货公司很容易利用这个策略，由此积极地吸引顾客用少量的零钱帮助需要的人发生巨大的改变。

Break this big bill into small change.

换开这张大钞为小钞.

Have some fifty dollars in small change.

我有约五十元的小面额硬币。

Has he detected even a small change in himself?

他是否已注意到在他身上的一点小变化？

This small change in your thinking can improve your mood.

您思维方面如此小小的改变就能够改善您的心情。