And ostriches and emus, too, are bare-necked-in their case to radiate away the heat generated when they run.

另外驼鸟和食火鸟也是光脖子的，它们这是为了加快释放奔跑过程中产生的热量。

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She wore a low-necked dress and her arms were bare.

她穿着低领连衣裙，手臂裸露。

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She wore a low-necked dress and her arms were bare.

她穿着低领连衣裙，手臂裸露。

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