without authority
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→shan4zi4 • shànzì
without authority
without authorization, without permission, without authority to do so
他 擅自 离开 了 公司。
He left the company without authority (to do so).
他 擅自 修改 了 计画。
He changed the plan without authority (to do so).
擅自 使用 别人 的 物品 是 不对 的。
Using someone else's belongings without authority (to do so) is wrong.