辨别真假的英文

W上购物很难辨别真假的英文翻译OnlineshoppingisdifficulttodistinguishbetweentrueandfalseW上购物很难辨别真假的英文翻译Onlineshoppingisdifficulttodistinguishbetweentrueandfalse

It is difficult to tell whether this (LV bag) is authentic or fake. -------from a New York Times articleit's extremely difficult to tell the real from the counterfeit. -------from a Business Week article

请告诉我如何辨认真假Please tell me how to identify true and false请告诉我如何辨认真假Please tell me how to identify true and false