Racking their brains after they were pressed in to send Email.

绞尽脑汁后，终于按了Email中的发送。

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With a sagging property market, US realtors are racking their brains to get a home sold.

美国房地产市场持续低迷，房地产经纪人不得不为卖房绞尽脑汁。

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People are always racking their brains to find a way of preventing buildings from collapsing.

人们总是绞尽脑汁来寻求使建筑物免于坍塌的途径。

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Biologists are racking their brains trying to think what useful task this apparently surplus DNA is doing.

FORBES: The Myth ... of the Myth of Junk DNA

The question Democrats must be racking their brains over today is why in the world Gore didn't better play his greatest trump card--the economy.

FORBES: Election Stranger Than Fiction

Meanwhile, cooler-headed Greeks are racking their brains for ways to regain the economy's lost competitiveness and make better use of Greece's abundant human and natural assets.

ECONOMIST: The Greek crisis