Q:My nails grow quite long, but they break off. I’ve tried nail hardeners, but they don’t seem to help.

　　我的指甲很长，但很容易折断。我试过用一些指甲硬化剂，但是没用。

　　A:Nail hardeners should be used when nails are bendy and flexible, rather than when they’re brittle and prone to snapping.

　　最好是在指甲比较柔软的时候用硬化剂，如果指甲很脆弱，易折断，那最好不要用硬化剂。

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　　Q:What’s the best type of nail file?

　　什么样的指甲锉刀比较好用？

　　A:Some of the best nail files are professional grade files, available in different types or grits. The grit is marked on the packaging or file as a number.

　　最好的指甲锉刀是分级别的那种，有不同型号和粒度（甲锉上数字单位的面积颗粒数，表示甲锉的粗糙程度）。粒度是用数字来表示的。

　　The higher the number, the finer and less abrasive the grit, the lower the number, the harsher the grit. The best file to shape artificial nails would be a 180 grit.

　　粒度越高，指甲锉就越细致，粒度越小，锉刀就越粗糙。美甲之后最好用粒度为180的锉刀打磨指甲。