listen carefully 和 listen to me carefully为什么一个加to一个不加to?

listen carefully 和 listen to me carefully为什么一个加to一个不加to? carefully什么意思?listen carefully listen carefully还是listen to carefully为什么 是Listen to carefully!还是Listen carefully? 造句,listen.teacher.carefully listen carefully的中文 Listen carefully think about -------(listen)carefully,myboy listen carefully是什么意思 listen carefully的否定句和反义疑问句 carefully是什么意思还有，listen carefully什么意思 仔细听,是listen carefully 还是 listen to carefully listen to the teacher carefully listen to me carefully是什么意思 I______(listen)to you carefully Please listen carefully 如题 listen to them carefully 英文翻译 LIsten very carefully的意思