as they competed to attract the very best pollinators. 因为它们争相吸引最杰出的传粉者
...so they can grow into giant-sized adults. 以便能够成长为体型庞大的成年恐龙
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
...for they aren't the only giants of the Jurassic. 因为它们不是侏罗纪时代唯一的巨兽
they can never let down their guard... 也绝不能放松戒备
As they grow further and further apart, 随着大♥陆♥继续互相远离
They have a much more efficient breathing system 它们拥有一种更高效的呼吸系统
...from the moment they enter the world. 就要自己保护自己
and they are left to fend for themselves... 自从出生的那一刻