They need hundreds of hour of study and practice

They need hundreds of hour of study and practice They need hundreds of hours of study and practice. they need hundreds of hours of study and practice,能改为they ne they need hundreds of hours of study and practice,这句话可以改为 they need hundreds of hours of study and practic里面 的语法结构是什么? They need hunderds of hours of study and practice the langua 那你帮我分析下they study English need hundreds of hours.我自己编的 they talked for aboutan hour of things and person they are very small and there could be hundreds of them on a 英语翻译they are very small and there could be hundreds of them they also will study chemical and physical properties of the 70 vessels and hundreds of thousands of feet of