Whether a current account deficit is unsustainable depends on the type of and the reason for capital inflows.

经常账户赤字能不能持续下去取决于资本流入的类型和原因。

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The US also has a big deficit on its capital account, which has made it the world's largest debtor nation.

BBC: US record trade deficit

What one can say, however, is that global economic stability calls for a gradual reduction in America's enormous current-account deficit (and its consequent heavy demands on the global capital market).

ECONOMIST: Beer should be strong. Currencies, not necessarily

PUNE--India's biggest economic concern is the current account deficit, because the government has to rely on volatile capital inflows to make up the shortfall, the chief economic adviser to the finance ministry said Tuesday.

WSJ: India Adviser: Current Account Deficit Biggest Concern