finally adv.最后；终于；决定性地=eventually,ultimately,lastly
at last 终于,到底,毕竟,好容易才in the end,at length,in fine
lastly adv.最后,终于
以上三个都可以表示最后、终于.而last一般表示上次：
last adv.最后地；上次,最近；最后一点
例：
The food finally arrived at the end of last week and distribution began.
The food arrived at last at the end of last week and distribution began.
食物终于在上周末抵达并开始分发.
The action slips from comedy to melodrama and finally to tragedy.
The action slips from comedy to melodrama and lastly to tragedy.
剧情由喜剧慢慢发展成闹剧,最后又演变为悲剧.