This graph shows what happens to your weight before, during and after the diet.

而这幅图显示了你过去，现在和后来体重的变化。

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In some cases, you may be required to lose weight before having gastric bypass surgery.

有时，你可能需要在在手术前减轻体重。

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To reduce your risk of complications you may need to lose some weight before surgery.

为降低手术综合风险，你需要术前先瘦身。

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But before going anywhere, they may want to lose any extra weight gained during the winter.

VOA: special.2010.06.08

As I mentioned before, fat has twice the calories per unit weight as protein and carbohydrate.

如我之前所说,单位重量中脂肪的热量含量,是蛋白质和碳水化合物的两倍

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Before this technology, a taller building required creating thicker stone walls to support its weight.

VOA: special.2010.03.31

Mr Bowen-Simpkins said women should lose weight before they tried to become pregnant.

BBC: NEWS | Health | Obesity linked to problem births

Sharonne Hayes, a Mayo Clinic cardiologist, suggests women who are overweight or obese and planning a pregnancy take steps to lose weight before conceiving.

WSJ: Problems in Pregnancy Signal Future Health Risks

The final that wrestling fans have been waiting for since Dake moved up to Taylor's weight class before this season has come to fruition.

WSJ: Penn State takes 20.5-point lead into finals