英语词汇an improvement upon的读音、用法、中文释义、短语词组及例句-英汉双解词典

单词	an improvement upon
释义	an improvement upon 例句释义: 全部
随便看	pick sth up pick stick spring pick stitch pickstock pickstone pick up picks up after pick up on picks up steam picks us up picks you up pick test pick test picktest pick tester pickthall pickthank pickthank pick their way pick them pick them up pick the winner pick through pick to pieces pick to pieces

英汉双解词典包含2704715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。