Agriculture in Sindh depends mainly on irrigation canals that have not been fully repaired yet.

信德的农业主要依靠尚未完全修复的灌溉渠。

Plus, scientists also found pyramids, ball game courts and water engineering, including dams and irrigation canals.

另外，科学家还在该遗址发现了金字塔和球场，以及大坝、灌溉渠等水利工程。

These Native Americans shaped this city some 1,500 years ago by digging irrigation canals to the river.

早在 1,500 年前，霍霍卡母人便挖掘运河灌溉这片土地，使得凤凰城茁壮发展至今。

Rising sea levels bring in more seawater. Irrigation canals turn salty. The problem is only going to get worse as temperatures rise.

海平面上升带来了更多的海水。灌溉水渠变咸了。随着气温的上升，这个问题只会变得更糟。