But just as these huge dinosaurs were devouring the plants around them,
但就在这些巨大的恐龙吞食周围的植物时

Question

To boost their chances of survival,
为了增加生存几率
these youngsters must eat as much as they can as fast as possible...
这些幼龙必须尽可能能快地吃下尽可能多的食物
...so they can grow into giant-sized adults.
以便能够成长为体型庞大的成年恐龙
But just as these huge dinosaurs were devouring the plants around them,
但就在这些巨大的恐龙吞食周围的植物时
the plants themselves were changing...
植物本身也在改变
...in ways that would revolutionize life on Earth.
这样的改变将为地球上的生物带来革命性的变化
Once upon a time, plants relied solely on wind or water to spread their pollen...
过去植物仅依靠风或水来传播花粉

来自《我们星球上的生命第一季第五集 Life on Our Planet S01E05 巨兽阴影下》第 55 行

But just as these huge dinosaurs were devouring the plants around them, 但就在这些巨大的恐龙 吞食周围的植物时