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名词
1. 千克；公斤A kilogram is a metric unit of weight. One kilogram is a thousand grams, or a thousandth of a metric ton, and is equal to 2. 2 pounds.
1. one thousand gramsthe basic unit of mass adopted under the Systeme International d'Unites
e.g. a kilogram is approximately 2. 2 pounds
Synonym: kgkilo
多通过句子记忆单词，而不是单独死记硬背。
