复数： lifetimes

Improving infant diets does a lifetime of good .

改善婴儿的膳食结构使其终生受益。

You 're developing lifetime relationships with people in your target market .

你在和目标市场中的人们建立终生的联系。

But the researchers admit that a lifetime of practicing braille could also get the credit .

但是研究人员也承认，终生练习布莱叶文也可以有此效果。

Expectations of lower future taxes and higher lifetime earnings may encourage investment and spending .

对未来税收更低、终生盈利的期望也将刺激投资与消费。

How has hong kong changed in your lifetime ?

在您的一生中香港有什么变化？