waistlines
n.
腰围( waistline的名词复数 );
（衣服的）腰身部分;
例句:
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He has declared war on our waistlines or rather, the male waistline.
来自THETIMES
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Wallets may have gotten thinner during this recession, but waistlines have expanded.
在这次经济衰退中,人们的钱包可能瘪了, 但腰围却鼓起来了.
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Our waistlines are expanding for one major reason: increasing inactivity.
身体活动的日益减少是我们腰围见长的一个主要原因.
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Waistlines remain in their natural position.
腰线仍然保持在他们自然的位置.
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But times, and waistlines, have changed.
来自THETIMES
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It's no wonder waistlines expand at Christmas if past years are anything to go by.
来自BBC