世界不是一个愿望实现的工厂。
"The world is not a wish-granting factory."
The meat industry must evolve to meet the demands of the next generation.
It is by no means an irrational fancy that， in a future existence， we shall look upon what we think our present existence， as a dream.
科学没有国界，但科学家有祖国，我们要为国家农业发展贡献力量。