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adv. 偷偷摸摸地; 精选例句 高考 1、 Naval organizations were covertly incorporated into civil ministries. 各种海军组织秘密地混合在各民政机关之中. 来源:辞典例句 2、 It is covertly taking away properties and materials belonging to others. 是偷偷的把别人的财产物质偷走了. 来源:互联网