英语短语词组词汇ppbs的音标、释义、翻译、用法及例句-英语短语词组词典

短语	ppbs
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…
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英语短语词组词典共收录525608条英汉双解短语词组词条，基本涵盖了全部常用短语词组的翻译及用法，是英语学习的有利工具。