piles

例句：

1. 1. The pile of books on the desk is too heavy for me to carry.
   书桌上的一堆书太重了，我搬不动。
2. 2. The farmer had a pile of straw in his barn.
   农民在他的谷仓里堆了一捆稻草。
3. 3. The pile of snow was blocking the path.
   雪堆堵住了道路。