But, cleverly, the Heliconia rations the amount of nectar it produces to force the hummingbird into returning to the flower time and time again.但艳红赫蕉狡猾地控制花蜜的生产量迫使蜂鸟再三回来吸食

time and time again屡次, 经常

We get letters from our uncle time and time again.

我们经常不断地收到叔叔来信。

I asked myself time and time again.

我一再地问自己。

Every time it makes a visit, it picks up more pollen on its beak and feathers.蜂鸟每来一次鸟喙和羽毛上就沾上更多花粉

pick up捡起；收集；得到

He picked up news from all sources.

他从各种渠道收集消息。

The dog easily picked up the scent of the murderer.

狗毫不费力地嗅出了谋杀者的气味。

Plants need to spread their seeds as far away as possible,植物必须尽可能地把种子散播到远方

far away遥远

The new music teacher lives far away.

新来的音乐教师住得很远。

The flames is spreading to the forest far away.

大火在向更远的森林蔓延。