英语词汇“prototype kilogram”的释义、用法及例句-英汉例句词典

词汇	prototype kilogram
例句	The international prototype kilogram is the measure of mass in SI units.国际千克原器是国际单位制中测定质量的标准。
随便看	happens happen-so happenstance happen to happen to meet happen to say happen upon happier happiest happily happiness happiness and peace Happy happy happy as a clam happy birthday happy camper happy chance happy day happy event happy family happy-go-lucky happy home happy hour happy hunting ground

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