These were carts that carried around the rice and the fish and served on street sides.

就是那种小推车，带着米和鱼在街边售卖。

I knew all the main streets, and even the side streets.

我知道所有的主要街道，甚至小街。

Remember I said, " There are houses on both sides of the street." " Sides" is plural.

记得我说过，“街道两边都有房子。”“边”是复数。

I knew all the main streets, and even the side streets. And of course you have to keep updating your knowledge of the streets, because the city changes.

我认识所有的主要街道，甚至连小街也都认识。 当然，你必须不断更新你对街道的了解，因为城市在变化。