英语词汇“sag-and-swell topography”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	sag-and-swell topography
释义	sag-and-swell topography sag-and-swell topography [¦sag ən ¦swel tə′päg·rə·fē] (geography) An undulating surface characteristic of till sheets, for example, the landscape of the midwestern United States.
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