Question

in two hours 和after two hours 的区别 最好能告诉我用法

Answer 1

in和after 区别
in +时间段：与将来时连用
after +时间段：与过去时连用
after +时间点：可与将来时连用
He will be back in two hours.
He came back after two hours.
He will be back after two o'clock.
in+一段时间表示将来时
如:I'll come back in a week
in＋一段时间也可用于过去时，意思是”．．．内”
如:he came in two days.
而after＋一段时间通常只能用于过去时，不能用于将来时
如：he came back after a week

after是之后
in是在……之内
都是将来时
after比in靠后

Answer 2

in two hours 可以表示将来
after two hours 可以用来陈述过去的事实