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春秋时,秦晋两国世代互相婚嫁。泛指两家联姻
《晋诸公赞》:“妻父有冰清之姿,婿有璧润之望,所谓秦晋之匹也。”
秦晋之匹作宾语;泛指两家联姻。
alliance between the two families by marriage