while的三种意思
1、意为“当……时候,和……同时”,引导时间状语从句。例如:While I was watching TV,the bell rang。(我看电视时,铃响了。)Tom watched TV while she ate her supper。(汤姆边吃晚饭边看电视。) 2、意为“虽然,尽管”,引导让步状语从句。例如:While it was late,he went on studying。(虽然很晚了,但他还在继续工作。)While he is in poor health,he works...