that only together 只有在一起

19. A pioneering partnership.
    这是一种开创性的合作关系
20. Neither plant nor animal,
    地衣既不是植物 也不是动物
21. lichen are a strange combination of fungi and algae...
    而是真菌和藻类的奇怪组合
22. that only together
    只有在一起
23. had what it took to overcome the extreme hostility of barren Earth.
    才能克服贫瘠地球的极度险恶
24. But they were more than just pioneering.
    但它们不仅具有开创性
25. They were groundbreaking.
    还具有开地性

来自《我们星球上的生命 第一季 第三集 Life on Our Planet S01E03 入侵大地》第 22 行