我试过用一些指甲硬化剂，但是没用。
你还可以试试指甲硬化油；这是一种指甲油。
You can even use a nail hardener; it is a kind of varnish for your nails.
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。 䅠。
My nails grow quite long, but they break off. I've tried nail hardeners, but they don't seem to help.
甲醛，一种常出现于指甲油和指甲硬化剂(的化学品)，是美容院工作人员处理最危险的化学品之一。
Formaldehyde, which is often found in nail polish and nail hardeners, is one of the riskiest chemicals for salon workers to handle because it may cause cancer after long-term exposure.
硬化油能让你的指甲干净而健康。
硬化油能让你的指甲干净而健康。
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