Although the flu and common cold have many similarities, there are some obvious signs to look for.

虽然流感和普通感冒有许多相似之处，但还是有一些能找得到的明显迹象。

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The disease shares some clinical signs with dengue, and can be misdiagnosed in areas where dengue is common.

此病的一些临床症状与登革热相同，在登革热常见地区会被误诊。

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There are some common tip-offs you should recognize as warning signs that you have an injury that needs your attention.

受伤后的身体会发出一些的信号，引起你的注意，应该将这些普通的提示作为身体发出的警报。

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Yet some early signs of the disease are common.

VOA: special.2009.09.15

There seems to be more of a positive attitude in the air this Monday morning on signs that U.S. lawmakers are finding some common ground on deficit reduction efforts.

FORBES: Eurogroup Meets, Could Kick Greek Can Into 2015