The exercise should be strenuous enough to leave your heart beating faster, and you should feel slightly out of breath.

艰苦的工作应足以让你的心跳加快，你应该感到稍微出一口气。

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Operating margin was 30.8% of revenue, gross margin was 40.3%, slightly beating Street expectations of 39.9%.

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The National Association of Realtors also announced on Thursday that the pace of existing home sales in the United States rose in May to a 4.99 million-unit annual rate, slightly beating Wall Street's expectations.

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What's more, news flow is turning slightly positive with Delta Airlines beating estimates and AMR narrowly avoiding bankruptcy.

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