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	terrae terrae filii terrae filius terrae incognitae terraform terraformed terraforming terraforms terrain terrains terral terramara terramare Terramycin terramycins Terran terrane terranean terraneous terranes terrans Terrapene terrapenes terrapin terrapin scale

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