“堆”怎么读

书本经常乱七八糟地堆在地板上。Books are often stacked in higgledy-piggledy piles on the floor.车子成了一堆扭曲的金属。The car was left a mess of twisted metal.暴徒用一堆堆燃烧的轮胎在大街上筑起了路障。The rioters barricaded streets with piles of blazing tyres....

...