Meat is, at best, a secondary source of essential elements.

肉类充其量不过是身体基本要素的次要来源。

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Both theoretically and from the perspective of social norms, the customary law should at least be a secondary source of our country "s legal system."

无论从理论还是从规范上分析，习惯法在我国法制上至少应占据次位法源的地位。

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Although diesel exhaust may be a source of secondary aerosols, paint and solvents, outdoor barbecues, and vegetation also contribute significantly, he says.

他说虽然柴油燃烧的排放可能是次生气溶胶的来源之一，涂料和溶剂，室外烧烤和植物也是重要的来源。

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However, this is a secondary revenue source for most broadcasters.

FORBES: Magazine Article

As some companies may fear releasing customized applications, Sun also offers a secondary license called Sun Industry Standard Source License.

CNN: Big names plan to pre-install Sun's StarOffice

Finally, LPs are taking a closer look at how GPs source their deals, and especially whether they relied too much on secondary buyouts over the past two years.

FORBES: Limited Partners Step Up Due Diligence