The fields are irrigated so that the crops can grow.
田地灌溉了,庄稼便能生长。
They irrigate their crops with water from this river.
他们引这条河里的水灌溉庄稼。
irrigate 网络解释
灌溉
...1.加强水利设施建设,以便灌溉 (irrigate) 农田,使农村居民都能安全用水. 为使农民出行便利(facilitate),仍将继续进行公路建设. 3.农村教育状况、农村卫生服务体系(public health care system)、农村社会保障体系(social security system)也都将得到改善....