原始地球 meaning in English
primitive earth
Examples
- A comet - shortly before impact - races towards primordial earth
一颗彗星正高速冲向原始地球。 - Biological reactions require nitrogen in the form of ammonia , but the only common nitrogen compound thought to have been available on the primitive earth is nitrogen gas
生物反应需要氨分子中的氮元素，但是在原始地球上唯一普遍的含氮化合物只有氮气。