Fish was a major source of protein for the working man.

鱼曾是劳动者获取蛋白质的主要来源。

《柯林斯英汉双解大词典》

Low levels of straying are crucial, since the process provides a source of novel genes and a mechanism by which a location can be repopulated should the fish there disappear.

低水平的游离是至关重要的，因为这个过程提供了一种新基因的来源和一种机制，通过这种机制，如果该地鱼群消失，可以重新繁殖该种群。

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Fish is a source of high quality protein, and is low in fat and cholesterol.

鱼是优质蛋白的来源，而且只含有很低的脂肪和胆固醇。

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While the American Heart Association recommends oily fish as the preferred source of omega-3 fatty acids, supplements are a convenient source for people who don't like fish or are unable to consume the advised dosage.

CNN: How fish oil supports heart health

In March Eason served on a sustainable aquaculture panel with a seafood and deli executive from Wal-Mart, which says it will only source fish from farms that meet environmental standards set by the Marine Stewardship Council.

FORBES: Magazine Article

In March Eason served on a sustainable aquaculture panel with a seafood and deli executive from Wal-Mart (nyse: WMT - news - people ), which says it will only source fish from farms that meet environmental standards set by the Marine Stewardship Council.

FORBES: She Shall Overcome