pb FREQ #41584 释义与例句 n. 1. Abbreviation of power brakes. 汽车 交通 词汇关系 名词 同义词 5 lead petabyte pebibyte petabit PIB 上位词 3 metal crystallogen tetrel 下位词 1 pig lead 部分词 5 tb terabyte tebibyte terabit tib 整体词 9 EB exabyte cerussite EBIT EIB exabit exbibyte galena white lead ore 相关短语 PB cup PB cups PB and J PB and Js