lose oneself
1． lose one's way迷路
We lost ourselves in the dark．黑暗中我们迷了路。
2．hide隐藏
The pickpocket lost himself in the crowd and escaped the police．小偷躲进人群，逃过了警察的追捕。
3． become absorbed in耽于…
Sometimes Harry would lose himself in a book for an afternoon．有时哈里整个下午都泡在书中。