单词	chuck ring
释义	chuck ring noun : one of a pair of heavy steel rings that form a chuck for holding a keg when turning grooves in the ends of staves Word History Etymology chuck entry 5
随便看	operable operably operagoer operagoers operagoing operagoings operance operancy operand operands operant operant conditioning operantly operants operas operatable operate operated operates operatic operatically operatics operating operating room operating system

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