而基建材料如沙子和石头以及劳力则由村里负责提供。
The villages contributed sand, stones and labor to build the facilities.
老师笑了，接着把沙子和石头倒出来，杯子是空。
The teacher laughed, and then to back out of the sand and stone, glass is empty.
令他们惊讶的是，那个珍贵的箱子装满了沙子和石头。
To their surprise, the precious parcel was full of stones and sand!
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