私自 (sī zì): Privately (Adverb) — Meaning & Stroke Order

He secretly took the company's documents, which is not allowed.

He secretly copied the company's confidential files and gave them to a competitor.

Why did you secretly change the plan we agreed upon together?

The employee modified the company documents without authorization and was caught.

She has never secretly embezzled public funds, which is clear to everyone.

Without authorization, no one is allowed to enter this laboratory privately.

Without permission, he decided to move the meeting time forward on his own, causing some colleagues to be unable to attend.

He secretly gave the spare key to his friend, which made me very angry.