投入的，沉迷的
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. 安完全沉浸在她的书里了。
I was lost in my own thoughts and didn't notice her approaching.
We were lost in wonder at the incredible architecture.
She was gazing into the far distance, lost in thought.
The audience were swaying on their feet, completely lost in the music.
See also: lost (ATTENTION)