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2013-10-29 23:37:21

PolyU's study results showed that most of these cosmetic contact lenses have surface coloured pigments which can easily come off when using a standardised lab-based rub-off test.


Word of the Day
donative
  • A gift; a largess; a gratuity; a present; a dole.
The word 'donative' comes from a Latin word meaning 'to give'.
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