A strong currency can be a curse for exporters, however.

不过强势的货币对出口国来说也是一种诅咒。

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A strong currency is, however, necessary to keep inflation in check.

然而，强势货币乃是抵制通胀之必须。

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A strong currency has exposed domestic manufacturers to fierce competition from imports.

强势的货币已经暴露出了国内厂商与进口产品的激烈竞争。

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The strong currency has helped the balance sheets of Brazilian companies with international aspirations.

ECONOMIST: Brazil

The government was, and remains, concerned about the strong currency, the Brazilian real, and rising inflation.

FORBES: Nomura Raises Brazil's Year-End Inflation Outlook to 5.7%

How about italics: there has to be strong currency policy in combination with tax cuts.

FORBES: Supply-Side Economics Takes Two To Tango