林业的未来在于平衡经济可行性与生态责任。
The future of forestry lies in balancing economic viability with ecological responsibility.
Life is a leaf of paper white，thereon each of us may write his word or two.
The key to success is not just technology, but how you use it to solve real problems.
能源独立是任何主权国家的战略优先事项。
函数的概念在数学中是基础的，而λ演算提供了一种形式化这一概念的方法。