太阳,带着所有围绕它运行并依赖它的行星,仍然能催熟一串葡萄,仿佛它在宇宙中无事可做。
It's so hard to say goodbye to yesterday
农业的进步不仅要以产量衡量,还要以长期的环境影响来衡量。
Every mathematical problem has a solution; the challenge is finding it.