As Will Rogers would have said, "There is no such thing as a free variable."
林业实践的创新对于应对气候变化的挑战至关重要。
The greatest art is found in the simplest moments of life.
改变一个人的关键是改变他的自我意识。
Life is too short to wake up with regrets.
The only way to avoid mistakes is to have no new ideas.