森林的真正价值不仅仅以木材的板英尺来衡量，还在于它所维持的生命和生态系统。
The true value of a forest is measured not just in board feet of timber, but in the lives it sustains and the ecosystems it supports.
The key to successful investing is to have a diversified portfolio.
Collaboration between governments, businesses and society is essential to tackle climate change.
文学的力量在于它能够让我们通过不同的眼睛看世界。
In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.
我本人是个乐观主义者，因为做别的貌似没什么用。