英语翻译

问题描述:

英语翻译
I was riding on the #3 bus going downtown.


请问#3在这句中怎么读?直接读three吗?

句子中为什么用going,而不是go.

读 No.three
bus going downtown.= bus which is going downtown.
定语从句 就要开往乡下的公交车