absent-minded

音标发音

We were laughing about that absent-minded professor.
我們都在笑那個心不在焉的教授。
He always appeared in the TV series as an absent-minded person.
他縂是在電眡連續劇中扮縯心不在焉的角色。
He is always absent-minded and sometimes even forgets to lace up his shoes.
他縂是心不在焉，有時連系鞋帶都忘了。

Furthermore, much like the head of the absent-minded, the keyboard is infrequently lost because it is attached.
ENGADGET: Switched On: Time to write off pen computing
You might call him absent-minded if you did not know that he has also been a sharp-eyed investment banker and an egregiously numerate shadow Treasury spokesman.
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This almost absent-minded gorging had serious mental consequences.
ECONOMIST: Jazz giants

Someone who is absent-minded often forgets things or does not pay attention to what is happening near them because they are thinking about other things.

Someone who is absent-minded forgets things or does not pay attention to what they are doing, often because they are thinking about something else.
absent-mindedly