本研究檢視《悲慘世界》音樂劇歌詞於大學部英譯中減譯技巧訓練的效用。研究包含練習與前後測兩部分。在練習部分，研究者引導學生進行兩階段翻譯練習：先將音樂劇歌詞譯為一般散文，再將散文譯文修改成與音樂搭配的可唱譯文。為評估效果，研究者設定九項常見減譯類型，先統計可唱版翻譯字數是否顯著少於散文版翻譯，再檢視學生譯文，分析減譯部分於九項常見減譯類型的分佈。在前後測部分，研究者設計一散文段落供學生翻譯，統計後測字數是否顯著少於前測，再分析減譯部分於九項常見減譯類型的分佈。比較練習與測驗的表現，可看出學生是否將所學技巧加以應用。研究結果顯示，《悲慘世界》音樂劇歌詞的翻譯練習有助於訓練減譯技巧；在音樂的制約下最常運用的三種減譯類型為定語成語、人稱代名詞、連接詞；學生於歌詞翻譯所習得之減譯技巧能夠運用於一般散文翻譯。
This study explores the effectiveness of training the reduction technique in undergraduate English-to-Chinese translation through a translation exercise of the Les Misérables musical lyrics. The design consists of an exercise part and a test part. In the exercise segment, the researcher guided the students through a two-stage translation practice. They first produced a prosaic translation, and then revised it into a singable version to align with the music. For assessment, nine common reduction categories were enlisted for analysis. A statistical computation was conducted to check whether the singable version exhibited a significant textual decrease against the prosaic version. A close reading was performed on the translated texts to analyze and calculate the reduced part in terms of the nine categories. In the test segment, the researcher designed a prosaic text for rendition in the pretest and posttest. A statistical analysis was undertaken to inspect whether the word count in the posttest was significantly lower than that in the pretest. The reduced part was scrutinized and computed based on the nine categories. Comparing the performance between exercise and test revealed whether the students applied their acquired technique in prosaic translation. The results are: the translation exercise of the Les Misérables lyrics assists the students in further developing their reduction skill; under the constraints of the music the three most frequently applied categories of reduction are Idiom and Phrase, Personal Pronoun, and Conjunction; and the reduction technique acquired in the song lyrics translation practice is successfully applied to a prose translation.