请问他说不用转化为4分制是什么意思

（南加州的申请系统）
我学校成绩单没有印出来的GPA，只有百分制的怎么办

For studies completed at non-U.S. institutions, please make sure to enter your GPA on the grading scale reported on your transcript. You should not convert it to a U.S. 4.0 scale. Additionally, you only need to enter the total credits if it is reported on your transcript. Please leave the field blank otherwise.

很正常，因为他们又不知道你用的哪个换算方式，所以自己还得换算一遍

就是学校官方开多少就写多少，和提交的成绩单对的上就可以