heap

accumulate, amass, collect, gather, heap, pile

这些动词均含“积聚，聚集，积累”之意。
accumulate: 几乎可用于指任何事物量的增加，侧重连续不断地，一点一滴地聚积。
amass: 着重大量地积聚，尤指对如金钱、珠宝等有价值东西的大量积聚。
collect: 普通用词，多用于指物，侧重指有区别地作选择或有安排有计划地把零散物集中起来。
gather: 普通用词，指人或物或抽象事物都可用。侧重于围绕一个中心的集合、聚集。
heap: 主要指把沙、石、煤、草等堆高，不强调整齐。
pile: 着重指比较整齐地把东西堆积在一起。

名词 heap:

1. a collection of objects laid on top of each other
   同义词：pile, mound, agglomerate, cumulation, cumulus
2. (often followed by `of') a large number or amount or extent
   同义词：batch, deal, flock, good deal, great deal, hatful, lot, mass, mess, mickle, mint, muckle, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad, whole lot, whole slew
3. a car that is old and unreliable
   同义词：bus, jalopy

动词 heap:

1. bestow in large quantities
2. arrange in stacks
   同义词：stack, pile
3. fill to overflow

1. He fell down the stairs, landing in a heap at the bottom.
   他从楼梯上摔下来，直跌到楼梯底部滚成一团。
2. There is a disorderly heap of clothes in his room.
   他屋里有一堆乱七八糟的衣服。
3. He heaped the plate with food.
   他在盘子里堆满了食物。
4. We have heaps of time.
   我们有很多时间。
5. The books lay in a heap on the floor.
   书堆放在地板上。