经济与生态之间的平衡是现代林业的核心。
The balance between economy and ecology is the core of modern forestry.
In the future, software will account for over 40% of a car's value.
Quality is not a department, it is a way of life.
我活下来是因为我保持了想象力的活力。
函数的概念在数学中是基础的，而λ演算试图使这一概念精确化。