1·They covertly observed Lauren, who was sitting between Ned and Algie at a nearby table.
他们秘密地观察着邻近桌子上坐在内德和阿尔吉之间的罗伦。
—— 《柯林斯英汉双解大词典》
2·The Aquino camp questions Mr Villar’s poor-boy-made-good story and suggests that he is being covertly backed by Mrs Arroyo.
阿奎诺阵营对于维拉的奋斗史提出了质疑，并暗示阿罗约正在秘密地支持他。
3·The Aquino camp questions Mr Villar's poor-boy-made-good story and suggests that he is being covertly backed by Mrs Arroyo.
阿奎诺阵营对于维拉的奋斗史提出了质疑，并暗示阿罗约正在秘密地支持他。
1·She watched him covertly in the mirror.
她从镜子里偷偷地望着他。
—— 《牛津词典》
2·At the low end, a ping flood can be used to uncover information covertly, but throttle up the packets being sent to a target or victim so that now, the system will go offline or suffer slowdowns.