petcock

听听怎么读
英 ['petkɒk]
美 ['petˌkɒk]
是什么意思
  • n.

    小活栓,小龙头;

  • 英英释义

    petcock[ 'petkɔk ]

    • n.regulator consisting of a small cock or faucet or valve for letting out air or releasing compression or draining
    学习怎么用

    权威例句

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