3：灌溉办法（Irrigation） 灌溉水泵（Irrigation Pump）必要建在河流旁边；灌溉水渠（Irrigation Ditch）从水泵那边把水引到农田周围。
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院中央的是个水泵，小女孩们就在这里泵水用来做饭、打扫卫生、灌溉花园。
In the middle of the yard was a water pump where the four little girls pumped water for cooking, cleaning and watering the garden.
他们开始大干起来，打了足够的水泵井来灌溉更多的土地。
They set to work and drilled enough pump wells to irrigate more land.
院中央的是个水泵，小女孩们就在这里泵水用来做饭、打扫卫生、灌溉花园。
In the middle of the yard was a water punip where the four little girls pumped water for cooking, cleaning and watering the garden.
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