A Pacific salmon struggles to swim up a stream on Kodiak Island.

一只太平洋大马哈鱼正在科迪亚克岛的一道小溪中艰难的逆流而上.

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Soon after spawning, the adult Pacific salmon will expire.

产卵之后, 大马哈鱼很快也就寿终正寝了.

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Pacific salmon are born in fresh water, but spend most of their adult lives in saltwater.

大鳞大马哈鱼出生在淡水里, 却是在海水中度过它们大部分的成年时光.

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