On the positive side, keeping your blood sugar on an even keel can help you feel better and stay mentally sharp.

从好的方面来讲，让你的血糖保持在一个良好的水平可以让你感觉更好并且大脑清醒。

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You can read about differences in keel shapes here.

你能在此文中（译者注，还没翻译到这一节，留链接位置先）了解到龙骨形状的差异。

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Keel-hauling, was you? And a mighty suitable thing, too, and you may lay to that. Get back to your place for a lubber, Tom.

拖龙骨？你们在谈拖龙骨？倒是个挺合适的话题，你要明白这一点。回到你的位子上去，你这个笨蛋，汤姆。

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You could find out that you're going to keel over from cancer before you get any symptoms.

FORBES: Luxury Genes

But if you bought alongside some sickly types who keel over early, your retirement checks would get fatter.

FORBES: Here's an investment vehicle you could kill for.