be lost in ...

phr

• ① 消失在…之中,在…中变得看[听]不到
  • He was quite lost in the crowd.他完全消失在群众之中。

• ② 入迷于…,迷醉于…;沉入…
  • be lost in reverie沉入幻想中
  • be lost in wonder惊叹不已,惊异得发呆