英语词汇“cover ground”的意思、释义、用法解释及翻译-春雷网

词汇	cover ground
释义	请查阅词条：cover
随便看	sign for signifer signifiable signifiant signific significacio significal significally significance significance level significance test significance testing significance threshold significance value significancy significand significant significant digit significant figure significant form significantly significantly significantness significant other significant others

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