小钢珠：英文名“Penny”

IntroductionPennyisacommonEnglishnamethatcanalsorefertoasmallcoin.However,inthecontextofgamingandsports,itcanalsorefertoasmallmetalballcalleda"steelpenny"or"littlesteelie,"whichiswhatwetypicallythinkofwhenweheartheterm"penny."...