拼音:liàn zhī wèi dìng
注音:ㄌㄧㄢˋㄓㄨㄟˋㄉㄧㄥˋ
解释:用心琢磨,反复锤炼,决定不下来。
英语:donot be decided for all that to think a lot about
单字解释: 炼 之 未 定