There is a bus and three ears behind the house.

房子后有一辆公共汽车和三辆小汽车。

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They are three things that your ears are not: hard, perfectly round and uni-size.

你的耳朵不可能是硬的，浑圆的和统一尺寸的。

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Three quick tips to protect your ears.

三种保护听力的简单方法。

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Three quick tips to protect your ears.

三种保护听力的简单方法。

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