农业的创新不仅仅是技术问题，更是思维方式的转变。

RNA干扰是一个迷人的过程，它为理解基因调控开辟了新的途径，并具有潜在的治疗应用。

可持续发展不再是选择；它是当今世界生存的必要条件。

There is no man, however wise, who has not at some period of his youth said things, or lived in a way the consciousness of which is so unpleasant to him in later life that he would gladly, if he could, expunge it from his memory.