单词	wellhead
释义	well·head (wĕlhĕd′) n. 1. The source of a well or stream. 2. A principal source; a fountainhead. 3. The structure built over a well.
随便看	N.Mex. NMI NMR NNE N-nitrosodimethylamine NNRTI NNW no no No No no. No NOAA no-account Noachian Noachic Noachical Noah Noah Noatak River nob nob nobble nobbler

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