we will save the lab report for later,

题目

we will save the lab report for later,
but we'd better make sure we do a good job on our experiment first.
当中的later中的为什么要加for,还有experiment前面为什么用on?in ,at这几者具体是怎么个用法?

答案

你好,应该是：
我们将保存实验室数据以便今后使用.
for later 供以后用,固定词组
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