heap of tripod

例句：

1. 1. The farmer has built a big heap of manure.
   农民已经堆了一大堆粪肥。
2. 2. He heaped the books on the table and started reading.
   他把书堆在桌子上开始读。
3. 3. The children were heaping up the sand for their sandcastle.
   孩子们正在把沙子堆起来建沙堡。