absent-minded

音标发音

We were laughing about that absent-minded professor.
我们都在笑那个心不在焉的教授。
He always appeared in the TV series as an absent-minded person.
他总是在电视连续剧中扮演心不在焉的角色。
He is always absent-minded and sometimes even forgets to lace up his shoes.
他总是心不在焉，有时连系鞋带都忘了。

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.
ECONOMIST: Oliver Letwin's big new idea about crime
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