Calm and peaceful for most of the year, the Nile used to flood annually, thereby creating, irrigating and carrying new topsoil to the nearby farmland on which ancient Egypt depended for livelihood.
2
村民会被劝说建造更多的梯田好让表层土不被冲刷掉。
Villagers may be persuaded to build terraces to stop topsoil running off.
3
一周以后，当工人将最上层的表层土夯实以后，臭味就消失了。
A week later, no smell could be detected as the workers tamped down a final layer of topsoil.
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