Pell 词形变化 Pells 复数 释义与例句 name 1. A surname. 相关短语 pell mell Pell City Pell Grant Pell Grants Pell equation Pell equations Pell number Pell numbers pell-mell adv. 乱七八糟地, 凌乱地, 忙乱地 a. 胡乱的, 混乱的 n. 乱七八糟, 混乱, 杂乱 Pell's equation