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PICA PEP PEEP PDM PC PBS PATSY PAST PACS P Owenism Ovshinsky effect Ovation Oscan Orlon fibre Oratorio

PICA
生词本

abbr.

Noun

1. a linear unit (1/6 inch) used in printing

2. eating earth or clay or chalk; occurs in some primitive tribes or sometimes in cases of nutritional deficiency