After several changes, their original（）of the product was lost.

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• The key points in the summary don’t have to be reported in the same order of logic as in the original text.
• stores essence which is the original source of reproduction.
• Research data is collected for（）in order to produce original research results.
• In the original Taoist texts, Wuwei is often associated with（）and its yielding nature.
• When writing a summary, you should never copy from the original.