Permanent eye tattooing-specifically permanent ink eyeliner-is all the rage these days.

永久性的眼部纹身——特别是永久性的墨线眼部纹身——如今是风靡一时。

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It has a permanent ink that resists even the harshest chemicals, including formalin, ethanol, isopropanol and xylene.

它拥有永久性的墨水，可以抵御最恶劣的化学试剂包括甲醛、乙醇、异丙醇以及二甲苯。

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When you pack the goods please see to it that the measurements, gross weight, and net weight are printed with permanent ink on each package.

你们包装货物时，请注意每个包装箱上应该用不褪色的墨水印上体积、毛重和净重。

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So if you're considering permanent ink, take the necessary steps to reduce your risk of tattoo regret.

CNN: Suffering from 'tattoo regret'

People were telling me that whole letters of the alphabet have been eliminated from the books of the Kenyan Electoral Commission, that their votes are not being tabulated correctly, that the permanent ink that they're dipping their fingers in to show that they voted is actually removable ink.

NPR: Kenyans Vote in Presidential Election