英语词汇step down ratio的读音、用法、中文释义、短语词组及例句-英汉双解词典

单词	step down ratio
释义	step down ratio 英?[step daun ?rei?i?u] 美?[st?p da?n ?re?o] 释义 n. 降压比
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英汉双解词典包含4367426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。