相关单词近义词 reticently 沉默寡言地, privately 私下地, guardedly 防护着地, mysteriously 神秘地, cautiously 慎重地, furtively 偷偷地, covertly 偷偷摸摸地, surreptitiously 偷偷摸摸地, slyly 狡猾的临近词secretive 返回 secretively