存: 动词1.(存在; 生存) exist; live; survive 短语和例子残存 remnant; surviving; 名存实亡 exist only in name but not in reality2.(储存; 保存) store; keep 短语和例子存粮 store up grain; 封存 seal up for safekeeping; 水库存了大量的水。
证券: bond; security; negotiable securities 短语和例子免税证券 tax-exampt [non-taxable] securities; 把证券给债权人作抵押 deposit bonds with a creditor as security; 证券持有人 fund holder; 证券存款 certificate deposit; 证券兑换