农业的未来在于可持续发展,我们要为子孙后代留下绿水青山。
The future of agriculture lies in sustainable development. We must leave green mountains and clear waters for future generations.
物理学的魅力在于它能够用简单的原理解释复杂的事物。
The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.