Nucleator
成核剂, 核
🗣️ 情景例句
You haven't changed much in fifty years.
你五十年来没有什么变。
Of nothing comes nothing.
无中不能生有。
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。