refine

v. /rɪˈfaɪn/ B2

改进；完善；提炼

To improve something by making small changes to it.

仙境例句

Year after year, Alice refined her Wonderland tale, until the children knew every word.

一年又一年，爱丽丝不断完善她的仙境故事，直到孩子们每个字都记得。