lifetimes
n.
一生，寿命( lifetime的名词复数 );
有生之年;
例句:
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Wealth always passed by these scholars who were all treated unfairly in their lifetimes.
在济宁,意外地得知,李白竟也是在济宁住过了二十余年咧!
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And hence the mean lifetimes of the two brands of engines, are equal.
也就是说,两种牌号引擎的平均寿命是相等的.
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Satellite lifetimes in orbit range from a matter of days to hundreds of years.
卫星在轨道上的寿命从几天到几百年不等.
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They never seen these kind of temps in their lifetimes.
来自SA
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Giant stars Stars change during their lifetimes.
来自BBC
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The notion that long radioactive lifetimes are undesirable is also erroneous.
来自SA