on somebody's watch

کسی مسئول بودن
مثال:
On your watch! : تو مسئولی! مسئولیتش با توئه!

🖊 during a period when someone is in a position of power, and is therefore considered to be responsible for what
✅ مثال: It's strange—even though it wasn't on my watch, I still feel partly responsible for the robbery.