Comparativeness
相对性（comparative的变体）
🗣️ 情景例句
How can I forget?
怎么忘得了?
The shortest answer is doing.
最简短的回答就是做。
Only the Earth provides ideal conditions, and even here it has taken more than four billion years for plant and animal life to evolve.
只有地球提供理想的条件，而即使在这里，植物和动物的进化也用了40亿年的时间。