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单词 foot pump
释义

foot pump

noun
A pump operated by using one’s foot: she was speedily blowing up a lilo with a foot pump...
  • He used a foot pump to circulate ether through a copper coil immersed in a bucket of water.
  • They take turns blowing it up with a foot pump.
  • It can be powered by solar energy, a foot pump, or a clockwork charger.
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更新时间:2025/2/3 12:36:28