peta-Wiktionary 原文/ˈpɛtə/词源链古希腊语Ancient Greek约前 1500–前 300 年πέντε↓ 派生英语Englishpeta-词源说明Based on penta- (“five”) (from Ancient Greek πέντε (pénte)) with the middle letter removed, analogous to tera-.释义前缀prefix1In the metric system, multiplying the unit to which it is attached by 1015 (a short scale quadrillion or long scale billiard). Symbol: P同族词派生词 1pebi-