The essence of mathematics lies in its freedom.
"We are all products of our time, for better or worse."
蔬菜种植不仅是生产,更是一种责任,我们要为消费者的健康负责。
文学的本质在于捕捉人类经验的瞬息万变,并将其永恒地铭刻在文字中。