重点词汇
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有效期
validity period; term of validity; (of medicine) time of efficacy
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缩写
abbreviate; shorten; abridge; abbreviation; acronym; initialism; contraction; abbr
Abbreviation of validity period
有效期
validity period; term of validity; (of medicine) time of efficacy
缩写
abbreviate; shorten; abridge; abbreviation; acronym; initialism; contraction; abbr