数十亿年来,大自然一直是最出色的生物工程师。
Did you grow me as food, and that’s why I have no memory?
The true measure of our industry's success will be how we balance economic growth with environmental stewardship.
The metropolis exacts from man as a discriminating creature a different amount of consciousness than does rural life.
理论不应该试图解释所有事实,因为有些事实是错误的。