英语翻译

问题描述:

英语翻译
why can't solar cells be used in all countries?
because there aren't many of them.
because they can't store much solar energy.
because they need a lot of sunlight to work.
because they are difficult to make.

为什么我们不能在所有的国家使用太阳能电池?
因为它们不够多(这句有疑问)
因为它们不能存储足够的太阳能
因为它们需要很多阳光才能工作
因为它们很难制作
不会是一篇阅读理解吧?我猜是D.太阳能电池不能普及就在于极大的技术成本.