Organic farming is not a step back, but a leap forward in quality and responsibility.
汽车的未来是绿色、智能、人性化的。
The more you try to be happy, the more unhappy you become.
光波,无论是以太波还是其他波,在所有情况下都是时间上的周期性过程。
Never let anyone tell you that you can’t do something.