He was ____thought and didn't hear the knock of the door.为什么是lost_英语解答

He was ____thought and didn't hear the knock of the door.
为什么是lost in,而不是losing in（进行时）?

人气：235 ℃　时间：2020-02-04 00:23:40

解答

be lost in沉迷于．．．或迷失在．．．．
固定短语