肥胖是根据身体质量指数，用身高和体重计算出来的结果。

Obesity is based on the body mass index, a calculation using height and weight.

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其身体质量指数是20，根据疾病控制中心数据显示，完全符合标准。

She has a body mass index (BMI) of 20—in the normal range, according to the Centers for Disease Control.

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然而，选择一些服装是根据身体质量指数(BMI)，以实现最佳的压缩。

However, the selection of some garments is based on the body mass index (BMI) to achieve optimum compression.

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