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v.保持( maintain的现在分词 )；保养；坚持；保卫 英英释义： maintain[ mein'teiniŋ ]v.keep in a certain state, position, or activity; e.g.,同义词：keepholdkeep in safety and protect from harm, decay, loss, or destruction同义词：conservepreservekeep upsupply with necessities and support同
