今小弟欲将大学成绩表译为夷文，却不知表中“优良中及”如何表达，可是abcd否？
望各位赐教！小弟诚惶诚恐，感激涕零！

应该可以吧，难道没有百分制的成绩吗？

In general, the university will do the conversion for you with some cost. Is it allowed to translate the transcript by yourself? Without clear instruction, you'd better not do that.