心不在焉的

He was so absorbed in his book that he was absentminded of the time passing.
他全神贯注于书本中，以至于忘记了时间的流逝。
She was walking down the street, but she was clearly absentminded, bumping into people and not looking where she was going.
她在街上走着，显然心不在焉，撞到人还看不见她要去的地方。
The teacher asked him several times to pay attention, but he seemed to be lost in thought, absentminded.
老师多次叫他注意听讲，但他似乎心不在焉，沉浸在自己的思考中。
The absentminded professor often forgot his own appointments, causing much inconvenience for others.
忘性大的教授经常忘记自己的约会，给其他人带来了不少麻烦。
She had an absentminded smile on her face as she walked down the aisle, lost in her own thoughts.
她面带心不在焉的微笑走过过道，沉浸在自己的思绪中。
The absentmindedness of the scientist led to him leaving his keys in the lab, which was quite unusual for him.
科学家的忘性大到让他把钥匙落在实验室里，这对他来说是相当不寻常的。
He was always absentminded when it came to remembering dates, which caused some confusion among his friends.
他总是记不住日期，这让他的朋友们感到有些困惑。
The absentminded chef accidentally put salt instead of sugar in the dessert, ruining the taste.
忘性大的厨师不小心把盐放进了甜点里，毁了味道。
Despite her absentminded nature, she managed to keep her job and was respected by her colleagues.
尽管她心不在焉，但她还是保住了一份工作，并得到了同事们的尊敬。
The absentmindedness of the old man made him forget to turn off the stove, leading to a small kitchen fire.
老人的忘性大到忘了关火，导致厨房里发生了一小场火灾。