They keep their young at home until they are physically able to survive on their own.

它们把幼崽留在家中，直到它们身体足够健壮，能够独立生存。

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In many parts of the country a family of five might struggle to survive on as little as $80 a month.

在这个国家的许多地方，一个五口之家靠每月80美元的资金很难维持生活。

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The data will certainly fuel the ongoing debate over whether physical education classes should be cut as schools struggle to survive on smaller budgets.

这些数据必定会加剧一直以来的争论，即在学校努力靠更少的预算生存之际，是否应该削减体育课程。

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The painting shows a group of sailors struggling to survive on a floating raft after the sinking of their ship,the Medusa.

VOA: special.2010.06.23

and they can't survive on that.

他们不可能只靠着这点儿工资过活。

一定要给小费 - SpeakingMax英语口语达人

For me to survive till Tuesday presumably is for there to be somebody some person alive lecturing to you on Tuesday.

我活到下星期二是假定,有人活着,下星期二给你们上课。

耶鲁公开课 - 死亡课程节选

They live in the factory's dormitory, and survive on food deliveries brought in by boat.

ECONOMIST: Thailand��s floods

Then there's the classic small brush moustache, apparently struggling to survive on the lip.

BBC: Moustaches under threat

Or stuck in a part-time job they can't survive on, unable to get any more hours.

BBC: Natalie Bennett