Which of the following is correct?
1) Rounding the corners of cut edges of the tapes.
2) Rounding the corners off cut edges of the tapes.
Thank you.
In fact both of these make sense. In (1) "of" means that the corners "belong to" the cut edges. In (2), "off" expresses removal.
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In fact both of these make sense. In (1) "of" means that the corners "belong to" the cut edges. In (2), "off" expresses removal. In practice, the difference in meaning will usually not be important.