i will give you a raincheck later是什么意思?

i will give you a rain check
我以后当择日补请你；我答应以后请你.
例句：
Since you cannot join us for dinner,we'll give you a rain check.
既然你不能参加我们的宴会,我们以后当择日补请你.
I'll give you a rain check,Peter,if you can't come to dinner this evening.
彼得,如果你今天晚上不能来吃饭的话,我答应以后请你.
I am sorry you can't come to dinner this evening,but I'll give you a rain check.
很遗憾今晚你不能来吃饭,不过以后一定再请你来.
The baseball game was canceled because of heavy rain,so every spectator was given a rain check for tomorrow's game.
因下大雨垒球赛取消了,所以给每位看球的人一张看明天球赛的免费票.
Can I take a rain check?
你能改天再请我吗?
Permit me to give the details later.
详情容后再告.
Give me a rain - check!
请再次给我机会!