第2个回答 2011-05-30
两者都对,但后者有不同/较深长的的义思.
A. 1. "I will be back in five minutes."(我出去一会儿...五分钟后我会回来)
2. "Mum, I will be back home before midnight.=I will be home by midnight."我会在午夜前回家.
B. 1. She will come back half an hour later=She will be back half an hour later.相同
2. "I will come back" = 可能意味着 " 我会恢复/东山再起..."
例: (a) The actress made a comeback years after retiring.东山再起
(b) "She will come back. Her downfall/disappearance is only temporary."东山再起