subsequence:
1.something that follows something else
[同] sequel,subsequence
2.following in time
也就是说,subsequence强调时间上面随后发生的事
consequence:
1.a phenomenon that follows and is caused by some previous phenomenon
2.the outcome of an event especially as relative to an individual
3.having important effects or influence
也就是说,consequence强调因果关系和影响