petcock

名词 n.
中文释义
英 /ˈpɛtkɒk/   

英文释义

名词 n.
  1. A small valve, spout, or faucet operated by hand, usually used to release pressure or drain fluid.
    — The doctor placed the rubber mask over her face and turned a dial and I watched Catherine breathing deeply and rapidly. Then she pushed the mask away. The doctor shut off the petcock.

词形变化

petcocks plural

词源

Apparently from pet + cock, because of its size.
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