And the elevators and tanks, trucks and machines that crawl over the fields and blunder over the highways -- whatever you see is productive.
And the elevators and tanks, trucks and machines that crawl over the fields and blunder over the highways -- whatever you see is productive.
还有升降机、储藏罐、卡车、机器缓慢地行驶在田野上，笨拙地奔走在公路上――你所见到的一切都能产生经济效益。