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UNTREF VOCABULARY( parte 2)- NIVEL 1
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developing coutries
países subdesarrollados/ en vías de desarrollo
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seek
buscar
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global warming
calentamiento global
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chemicals
químicos
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concerns
preocupaciones
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wages
salarios
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look after
cuidar
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employees
empleados
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brain drain
fuga/pérdida de cerebros
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charcoal
carbón
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