"covertly" in Chinese (Simplified)
秘密地暗中
Definition
以隐秘、秘密、不公开的方式；秘密地。
Usage Notes (Chinese (Simplified))
“Covertly” 多用于正式场合，描述间谍、调查等秘密行为。常见搭配有“covertly observe”（秘密观察）。不要与“overtly”（公开地）混淆。
Examples
He covertly listened to their conversation.
他**秘密地**偷听了他们的谈话。
The spy covertly took photos of the documents.
间谍**秘密地**拍摄了文件。
She covertly opened the letter.
她**偷偷地**打开了信。
The journalist covertly recorded the meeting to gather evidence.
记者**暗中**录下了会议以收集证据。
They covertly switched the packages without anyone noticing.
他们**暗中**交换了包裹，没有人发现。
She covertly glanced at her phone during the meeting.
她在会议中**偷偷地**瞥了一眼手机。