in a manner that is kept hidden from others

秘密地, 偷偷地
in a manner that is away from public view or knowledge

秘密地, 暗中
in a manner that maintains trust and protect sensitive details

机密地, 以信任的方式
in a secretive manner to avoid drawing attention

偷偷地, 秘密地
without revealing one's identity or name

匿名地, 不透露姓名地
in a secretive, sly, or sneaky manner

偷偷地, 鬼鬼祟祟地
with an intention to avoid detection or attention

秘密地, 暗中
with the intention of keeping actions, plans, or operations secret

秘密地, 暗中
in a manner that is not open to the public or others

私下地, 秘密地
in a secret way involving only a particular person or group and no others

私下地, 秘密地
with the intention of avoiding notice or preserving privacy

谨慎地, 悄悄地
in a way that is secretive and sly

偷偷地, 鬼鬼祟祟地
in a quiet, careful, and deliberate manner intended to avoid detection or observation

悄悄地, 隐秘地
in a way that is visible or easily noticed

公开地, 明显地
in a way that is visible or accessible to the general public

公开地, 公然
