In the twenty years , they also can give us the better cars to use less resources-consumed transportation tools and give us the much more convenience tools for our travelling .
In twenty years , they also can give us better cars that use fewer resources , and give us much more convenient tools for traveling . In the next twenty years , they also can give us the better cars to use less resources consumed , transportation tools that give us the much more convenience , and tools for our travelling . In the twenty years , they can also give us better cars to use less resources and give us much more convenient tools for our traveling . In twenty years , they also can give us better cars that consume fewer resources and be more convenient for travel .