"preoccupied" in Chinese (Simplified)
心不在焉专注于（某事）忧心忡忡
Definition
因一直想着某事而没有注意周围发生的事情，或无法专注于其他事情。
Usage Notes (Chinese (Simplified))
常用于中性或较正式的语境。常见搭配有 'seemed preoccupied'、'looked preoccupied'、'be preoccupied with'。多形容因担忧或专注而显得心不在焉。
Examples
He seemed preoccupied during the meeting.
他在会议上看起来很**心不在焉**。
She was too preoccupied to notice the phone ringing.
她太**专注于**别的事，没注意到电话响了。
Why are you so preoccupied today?
你今天为什么这么**心不在焉**？
I tried talking to her, but she was completely preoccupied with her thoughts.
我试着和她聊天，但她完全**沉浸在**自己的想法中。
Don’t be so preoccupied—just enjoy the party!
别那么**分心**，好好享受聚会吧！
He gets so preoccupied with work that he forgets to eat.
他一工作就特别**专注**，连饭都忘了吃。