单词	ball cock
释义	ball cock noun : an automatic valve whose opening and closing are controlled by a hollow float at the end of a lever Word History First Known Use 1734, in the meaning defined above
随便看	shore cod shore cover shore crab shore current shore dinner shore drift shore fast shore fly porphyria Porphyrian Porphyrian tree porphyrianist porphyrias porphyries porphyrii porphyrin porphyrine porphyrins porphyrinuria Porphyrio porphyrioes porphyrios porphyrite porphyritic porphyroblast

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