你需要几部手机？用英语怎么讲？

How many cell phones/mobile phones/phones do you need?

How many cellular phones is your demand?

希望对您有所帮助~~~o(∩_∩)o...

给你推荐一个在线翻译的好网站：http://translate.google.cn/translate_t?sl=es&tl=zh-CN
以后有问题都可以去：）

这句话可以这样说：How many cell phones do you want ?

How many cellphones do you need?

How many cell phones do you want?

how many cell phone are you need ?