"万圣节少不了大大小小的南瓜灯装饰，不过为何是西瓜、冬瓜或萝卜，而是南瓜呢" 怎么用英文表述最地道啊?

Pumpkin lanterns of different sizes as (festival) decorations are indispensable for the Halloween (Eve);s Day can', but why is pumpkin chosen rather than water melon;t dispense with large and small pumpkin lanterns as decorations, white gourd or carrot, wax gourd nor carrot?

2, but why is such melon chosen rather than other fruits as water melon.The All SaintƇ