two boxes of apple 还是 two boxes of apples对?

two boxes of apple 还是 two boxes of apples对?
two boxes of apple 还是 two boxes of apples对?

two boxes of apple 还是 two boxes of apples对?
two boxes of apples 正确.
因为两盒子苹果,不止一个苹果,应该用复数名词.

two boxes of apples对 因为box 和apple都是复数