还有庞大的存档室存放改正后的文件。
There were the vast repositories where the corrected documents were stored.
我会把改正后的合同扫描并放给你们，请注意查收。
I will scan and send the contract with correction to you. Please check and accept.
将幼儿分成两组，把改正后的算式用来进行抢答赛。
Two groups to have a race giving the right answer to the arithmetics.
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