No man's knowledge here can go beyond his experience.
反对民煮最好的论据就是与一个普通选民五分钟的谈话.
要想改变世界需先改变他自己。
Sustainable forestry isn't a cost—it's an investment in our future.
跨行业的合作是解决我们面临的复杂能源挑战的关键。