The more you invest in a bad relationship, the more it costs you.
研究最有价值的部分是看到你的工作转化为现实世界的影响。
It must be remembered that while sympathy with joy intensifies the sum of joy in the world., sympathy with pain does not really diminish the amount of pain. It may make man better able to endure evil, but the evil remains.
分子设计育种是未来作物遗传改良的重要方向,它将大幅提高育种效率。