can reach the new taller food sources. 可以够到新的更高的食物来源
Yet even those that reach the oceans aren't safe. 但是到达海洋的小海龟也并不安全
And a projectile tongue gives them extraordinary reach. 弹射式的舌头 使它们拥有了超长的射程
All the trilobite can do is try to stay out of reach. 三叶虫能做的只有设法保持距离
Their reach was limited by their ties to water. 它们与水的关系 限制了它们的活动范围
Lake powell took 17 years to reach high-water mark. 鲍威尔湖用了17年才达到最高水位