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1. Oxford Dictionary

   bob weight

   英式

   • n.
     a component used as a counterweight to a moving part in a machine.

   • noun: bobweight, plural noun: bobweights

2. • 更多解釋

   bob weight

   • IPA[bäb wāt]

   • n.
     a component used as a counterweight to a moving part in a machine.

   Oxford American Dictionary