多年来人们一直在使沙漠变良田，融化高山的冰川来灌溉庄稼。(turn into)
For years people have been trying to turn deserts into fertile lands and to melt mountain glaciers to irrigate crops.
多年来人们一直在使沙漠变良田，融化高山的冰川来灌溉庄稼。(turn into)
For years people have been trying to turn deserts into fertile lands and to melt mountain glaciers to irrigate crops.
