英语介绍个产品
问题描述：
英语介绍个产品
介绍个你买过最好的产品.
What it is,lolour,size,material etc.
when/where/why did you buy it?
Did you consider other products?
what's the best feature of the product?
答
Solar flashlight,for example,if there is no built-in battery,you can only let it lighting in the sun light.Should not be many people will make such a move.Solar energy products,the main design concept...