Many low - and middle-income countries are now facing a "double burden" of disease.

许多中低收入国家目前正面临“双重疾病负担”。

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Since men can't do what women can do — have babies — this put a double burden on women.

因为男人不能做女性擅长的事(生孩子)，这就导致了女性的双重负担。

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These countries are already shackled by the double burden of infectious and chronic diseases.

这些国家已经承担了传染病和慢性病的双重负担。

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This double burden is why sceptics regard the idea as politically impossible.

ECONOMIST: Latin lessons on pensions

And in a 2010 McKinsey report, female senior executives cited the "double burden syndrome" of balancing motherhood and work as the main obstacle to women attaining more top roles in companies.

WSJ: McKinsey Tries to Recruit Mothers Who Left the Fold

The World Health Organization (WHO) calls it a "double burden" of disease and says: "It is not uncommon to find under-nutrition and obesity existing side-by-side within the same country, the same community and the same household".

BBC: Obesity pandemic