surreptitious menstruation [醫(yī)藥科學(xué)]暗經(jīng)surreptitious (adj.) surreptitious adj.暗中進(jìn)行的；鬼鬼祟祟的；保密的surrenders v.投降；屈服；放棄n.投降；屈服；放棄surrenderor n.[律]讓與人；讓與者surrendering v.投降；屈服；放棄n.投降；屈服；放棄surrenderer n.讓步者；屈服者surrenderee n.[律]受讓人；受讓者surrendered v.投降；屈服；放棄n.投降；屈服；放棄surrender value in cost [經(jīng)濟(jì)學(xué)]保險(xiǎn)解除退還金surrender value 被保險(xiǎn)人中途解約時(shí)的退保金額；退還金額surrender to 投降；自首surrender oneself to the police 投案surrender oneself to the law 自首投案surrender oneself to justice [法學(xué)]自首surrender oneself to 沉溺于；屈服于surrender of travel document [管理學(xué)]交出旅行證件surrender ill-gotten gains 退贓surrender dorothy surrender (v.)