For a start, it's tricky to keep it clean. 首先 想保持干净就有点难度
that means it doesn't have to join the fight. 不必和其它蜂鸟争夺食物
it gives the swordbill a fresh supply of food all to itself. 为刀嘴蜂鸟提供了专属的新鲜花蜜
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
One hummingbird has gone to great lengths 这种蜂鸟竭尽全力
to avoid conflict with other species. 试图避免与其他物种的争斗
to more species of plants than anywhere else on Earth. 是地球上最多的
It has succeeded in doing what every tree must do to survive... 它与其他树木一样努力生长
And, what is more, its success has given life to others. 不仅如此 它还养活了很多其它的生命