求解... ... CD-语法专区-系统学习-比较之庖丁解牛 Sand road costs twice as many to build asto maintain(类似于介宾比较) Sand road costs twice as many to build asstone road do(主语比较,) Sand road costs the government twice asmany to build as the residents.(宾语比较) A.请翻译三句话,我怕我理解有偏差。 B.每句中得many是什么词性,表达什么意思?