They found that plenty of kids changed weight categories as they grew, with some bulking up and others thinning out.

他们发现很多的小孩当他们发育的时候改变了重量级别，有些人是变胖，有些人是变瘦。

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Thinning scissors are used by hair dressers and have serrated cutting edges so that hair is cut at different lengths. This way it doesn't all "bunch up" together.

细化剪刀是美发师的常用工具，它的刀刃是锯齿状的，所以可以将头发剪出不同的长度从而使它们不会堆在一起。

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New York image consultant Julie Rath advises her clients to get closely cropped when they start thinning up top.

纽约形象顾问朱莉-拉斯建议客户在头发开始稀疏的时候就把头发剪成寸头。

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The legislation will streamline previously excessive bureaucratic procedures so that federal land managers can begin thinning up to 20 million acres in high-risk areas.

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