人的一生能有几个２０年？在陕西省礼泉县，有一个名叫张志辉的人，竟用２０年时间去搞再生能源的研究。当人们看着一辆又一辆高级小轿车停在张志辉家门口时，在感慨之余就不能不想起这位曾被人奚落过、嘲讽过、甚至辱骂过的人在２０年间所经历的苦难与折磨。那么，身为农民的张志辉，究竟为什么要去搞再生能源的研究？他又如卡 能使阳光变成明火？ How many years can a man have in his life? In Liquan County, Shaanxi Province, there is a man named Zhang Zhihui, who actually spent 20 years engaged in renewable energy research. When people watched one after another high-level cars parked at the door of Zhang Zhihui, I can not help but remember the man who has been ridiculed, mocked, or even abused the suffering experienced in 20 years With torture. So, as a farmer Zhang Zhihui, why to engage in renewable energy research? How else can a card turn the sun into an open flame?