In this situation, his English improved incredibly quickly, and he graduated as top of the school. According to one teacher, Chang Wei-lin, Lai was the ideal student: highly motivated and incredibly enthusiastic.
在這種嚴格要求下，英文更是進步神速，最後他以第一名的成績畢業。據當年外語學校的老師張為麟表示，賴世雄不只用功，而且積極有興趣，完全是自發性的研讀英文。