这四个词都可表示好“完成”的意思
finish 普通用词，表示某人将某事按照预定目标完成。
1) It is impossible for us to
finish this formidable task within a
week.
我们不可能在一周内完成这项艰巨的任务。
2) If I had not been interrupted this
morning, I would have finished the
work already.
如果今天上午不被打扰的话，我已经就完成这项工作了。
3）I must settle down this morning and
finish the term
paper.
我今天上午必须安下心来完成学期论文。
fulfil 用法同
finish，但比 finish 正式。
1) We have fulfilled this year’ production quota one month
ahead of
seclude.
我们提前一个月按时完成了今年的生产指标。
2）These
soldiers have received very strict training and are well equipped
to
fulfil the new
task.
这些士兵受过严格训练,能够出色完成这项新任务。
3) We must fulfil the
unalterable quato of 60 million Yuan in profit to
be
turned over to the
state.
我们必须完成向国家上交6000万元利润这一硬指标。
complete 指通过努力逐步完成某事。
1) The new railway to Sanyawan has been
completed and will be open to traffic
next
month.
通往三亚湾新铁路已经完工,将在下个月通车。
2) We will make great endeavors to
complete the project before
the rainy season
sets
in.
在雨季到了之前，我们尽极大努力来完成这项工程。
3）The commission is likely to take six
months to a year to complete its
investigation, he
said.
他说委员会可能需要半年到一年的才能完成调查。
accomplish 指较好地完成比较艰难的事。
1) Despite repeated failures and
setbacks, they accomplished the
formidable
task with persistent efforts.
尽管一再失败和受到挫折，经过坚持不懈的能力他们终于完成的这项艰巨的任务。
2) In my opinion, it is rather a
difficult thing to accomplish this
arduous
work within one
week.
在我看来,在一个星期内要这项完成艰巨的工作是相当困难的事。
