他沉浸在自己想象的世界中。He submerges himself in the world of his imagination.游泳的时候，我沉浸在自己的世界里。When I'm swimming I'm in a world of my own.他说他们脱离现实，总是沉浸在过去。He said they were unrealistic and steeped in the past....
The stag at bay is a dangerous foe.穷寇勿追.Identification Friend - or - Foe ( IFF ) system is very important in modern warfare.敌我识别(IFF ) 系统在现代战争中占有极为重要的地位.With power and to spare we must pursue the tottering foe.宜将剩勇追穷寇.At...