As it flies off,the Monarch's feet hook out the pollen and carry it to the next flower蝴蝶飞走时顺带把花粉带到下一朵花上

fly off飞离(挥发)

Her hat fly off and landed up in the river.

她的帽子让风刮跑落到河里了。

Can't you fly off with the rest of the team?

难道你不能与其他队员一起乘飞机走吗?

They may be small, but they play a very important role keeping nectar well guarded at the very bottom of their long stems.花虽然很小但扮演了保护长梗底部花蜜的重要角色

play a role起作用；扮演角色

Computers play an important role in our daily life.

计算机在我们的日常生活起着重要的作用。

He was invited to play a role in this TV play.

他被邀请在这个电视剧里扮演一个角色。

it is the only bird capable of reaching this energy-rich food.是唯一有办法取得这种高能食物的鸟儿

capable of能够

He is capable of great villainies.

他能干出极坏的事情。

A man driven by jealousy is capable of anything.

嫉妒心可使人什么都做得出来。