She wants to keep thin.

她想保持身材苗条。

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But mother never eat too much, because she wants to keep thin.

但是妈妈她从来都不会吃太多，因为她想保持苗条的身材。

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It is said that for a certain period of his life Byron lived on vinegar and potatoes in order to keep thin.

据说拜仑曾有一段时期为了不发胖靠吃马铃薯和酸醋过日子。

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Too many fat people in the United States, so this will help them keep thin, you know.

美国有太多肥胖的人了，这样可以帮助他们保持苗条。

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Americans, it would seem, are drinking less as protracted unemployment keep wallets thin.

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When rotating, the forces of nature keep the thin layer of liquid mercury in the shape of a parabola.

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More importantly, the chipset could be miserly enough to let Apple keep its thin design while mustering reasonable battery life.

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