their growth cut short by the diminishing light. 大部分的植物因为缺少阳光而生长缓慢

56. surging ahead of almost all their rivals.
    几乎超越所有竞争者
57. In the race for the top sport hundreds will start
    在这个长高比赛上
58. yet few will ever reach the finishing line,
    众多的运动员中只有少数可以冲过终点
59. their growth cut short by the diminishing light.
    大部分的植物因为缺少阳光而生长缓慢
60. In less than four years,
    在接下来的至少4年时间里
61. the gap will have gone
    地表将暗无天日
62. but that's not the end of the race.
    但比赛还没有结束

来自《行星地球 第一季 第八集 Planet Earth S01E08 热带雨林》第 59 行