【Emily Lin】評論
He was lost in thought. be lost in sth giving so much attention to what you are doing that you are not conscious of anything else that is happening around you: Ann was completely lost in her book.
【97017017 9701】評論
同1F同學~be lost in sth 著迷 /迷失...本句 He was lost in thought, he almost ran into the car in front of him.考分詞構句,改寫成Lost in thought,~