英语词汇PPB怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	PPB
释义	PPB abbr.planning-programming-budgeting (system) 计划—设计(程序)—预算制(或法)(一种商业、政府、研究机构的计划方法) [亦作 PPBS] ppb, ppb. abbr.parts per billion [美国英语]十亿分率,十亿分之…
随便看	difficultly difficultness difficultnesses difficult of difficult of access difficult of accomplishment difficult of approach difficult to difficulty diffidation diffidence diffidences diffident diffident about diffidently diffidentness diffident of diffiuent diffluence diffluences Difflugia difflugias difform difformed difformities

英汉双解词典包含483723条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。