When the heel is unstable, toes tend to grip which can lead to tendinitis, worsening of toe deformities, nail problems, corns and calluses.

如果脚后跟不稳定，脚趾就会紧紧抓地，可能导致肌腱炎、加剧脚趾变形、指甲异常、鸡眼、产生老茧。

youdao

Because the research about problem solving is that if you start targeting any problem in your life, and nail it, all the other problems become easier.

因为有关解决问题的研究表明如果你开始瞄准了生活中任何其中一个问题，并解决掉了，那么其它的问题就会变得更容易。

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We'll be working hard in the next week to update the official docs and nail the problems we've found and that we may find in the meanwhile.

在下个星期我将努力工作来升级官方文档，解决我们发现的问题和我可以在期间发现的问题。

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Bankers admitted to developing chronic pain, never-ending colds, anger management problems and nervous tics such as nail-biting.

FORBES: Wall Street Hours Mean Health Troubles

Congress also needs to fix looming problems with the Alternative Minimum Tax, a complicated shadow tax system originally designed to nail fat cats.

FORBES: Where's My Tax Cut?