In our reasonings concerning matter of fact, there are all imaginable degrees of assurance, from the highest certainty to the lowest species of moral evidence.
农业的未来在于平衡生产力与环境责任。
这就是关于每天努力变得不那么无知和自私一点。
造纸行业有责任在环境管理方面发挥领导作用。