Besides, there are occupational differences.

另外也存在着职业上的差异。

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The Georgetown researchers note, "People with lower educational attainment can often make more than those with higher attainment as a result of occupational differences."

乔治城大学的研究人员表示：“由于职业差别，受教育水平较低的人收入通常远远高于受教育水平高的人。”

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Technically the same people—they speak the same language and belong to the same culture—their differences, occupational and physical, were deepened and manipulated by the German and Belgian colonists.

从理论上来讲，他们是相同的民族，因为他们讲相同的语言、属于相同的文化，他们的差异（职业的和物质的）是由德国和比利时的殖民者所加深和操纵的。

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The researchers say that lifestyle and occupational differences "largely explain this gap".

BBC: European men lag behind in life expectancy

Although there are common elements in vocational guidance wherever practised, there are also important differences in terms of culture, education, employment practices and occupational structures from country to country.

UNESCO: GUIDANCE