working years

基本解释

This has been the hardest item for me to do consistently over my working years.
工作这些年来，对我而言这是最难坚持做到的一条。
According to the life-cycle theory of savings, people build up assets in their working years and spend them in retirement.
根据储蓄生命周期理论，人们在其工作年限期创造资产，作为他们退休后的花销。
Today when you reach 50 you can realistically expect to look forward to as many working years ahead as you have behind you.
今天当你到50岁的时候，你真切的希望未来有足够长还能够像你前五十年那样投入工作。

Darwin had been working on his theory for over twenty years when he published " On the Origin of Species."
And scientists have been working on this for years and there's been progress, but it's still a very difficult challenge.
科学家们对此已经研究很久了,并取得了进展,但仍有很大挑战
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The longest piece that I have been working on has been developed over the last three years.
我一直在写的一个最长的剧本已经写了三年了。
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During their working years, men now have more leisure time than in the past.
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