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	sperm- CBO CBP CBW cc CC cc. CCA CCC CCD CCK cckw. C clef CCTV CCU ccw. cd Cd CD CD4 CD4 cell CD4 count CD8 CDC CD-I

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