swordbills can't reach their feathers with their beak. 刀嘴蜂鸟的喙够不到身上的羽毛
enables it to reach the places that others can't... 可以够到其它蜂鸟无法触及的地方
Only 2% of the sun's rays reach the ground... 只有百分之二的光线会到达地面
Following the adults, the kids finally reach the valley. 跟着成年羱羊 小羊们终于到达山谷
in safety, beyond the reach of predators. 环境安全 没有天敌
millions of red crabs haven't managed to reach the sea. 数以百万的红蟹未能成功抵达海洋
Newly created and often remote, they're hard for colonists to reach. 由于形成时间晚又常十分偏远 鲜有生命踏足
Yet it is all blossoming on an extinct volcano, a mile below the reach of the Sun. 这些生物在这座死火山的的繁荣地点, 离阳光照射到的地方还有1英里呢
These vents give off so much energy that some of the worms reach three meters in length. 这些火山口带来的丰富的能源 甚至可以让这些蠕虫长到3米长