树种多样性不仅仅是生态学,它是我们地球肺部的风险管理。
The most exciting moments in mathematics are when you see connections between things that seemed unrelated before.
The novel is a rebellion against the limits of reality.
阈限性是两个阶段之间的过渡状态,个体不再处于前一个状态,但尚未进入下一个状态。