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covertly + verb
副词前置，强调动作的隐蔽性。
He covertly observed the meeting.
他秘密地观察了会议。
秘密地；暗中；偷偷地
先理解核心含义，再看它在真实句子里的用法。
秘密地；暗中；偷偷地
secretly; in a covert manner
He covertly observed the meeting.
他秘密地观察了会议。
隐蔽地,秘密地。
In a covert manner, secretly.
秘密地
in a covert manner
He covertly passed the documents to his contact.
他偷偷地把文件递给了他的联系人。
AI contextual example
The company covertly monitored its competitors' activities.
那家公司秘密监控竞争对手的活动。
AI contextual example
She covertly took a picture of the celebrity.
她偷偷地拍了一张那位名人的照片。
AI contextual example
he did it covertly
他秘密地做了这件事。
WordNet
副词前置，强调动作的隐蔽性。
He covertly observed the meeting.
他秘密地观察了会议。
副词后置，常见于不及物动词。
They operated covertly in the region.
他们在该地区秘密行动。
用于被动结构，表示秘密进行。
The operation was covertly funded.
这次行动被秘密资助。
Not this
He did it covert, so no one saw.
Use this
He did it covertly, so no one saw.
副词“covertly”需要以-ly结尾修饰动词，而“covert”是形容词，不能直接用作状语。
Not this
She spoke overtly about the secret plan.
Use this
She spoke covertly about the secret plan.
“overtly”意为公开地，与“秘密地”相反。正确的词是“covertly”，表示秘密地做某事。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
秘密行事
The agent had to act covertly to avoid detection.
特工必须秘密行事，以免被发现。
秘密运作；暗中活动
The organization operated covertly for years before it was discovered.
这个组织秘密运作多年后才被发觉。
暗中观察
Researchers observed the animals covertly so as not to disturb them.
研究人员暗中观察这些动物，以免打扰它们。
暗中支持
The government was accused of supporting the rebels covertly.
政府被指控暗中支持叛军。
秘密录制；偷录
He covertly recorded their conversation without permission.
他未经许可秘密录下了他们的谈话。
Use covertly naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 cover（盖住）：把行动盖住不让人看见，就是 covertly——秘密地、暗中地做事。
语域：formal 常见场景：formal writing、official reports、intelligence and military contexts covertly 通常比 secretly 更正式，多用于正式写作、官方报告或情报/军事语境，表示‘隐蔽地、秘密地’；日常口语中较少见。
与 secretly 近义，但更强调隐秘性
Dictionary facts from ECDICT, WIKTIONARY.