"Self-study" 英语表达为 "self-study"，意思是自学。
这个词是由 "self" 和 "study" 拼接而成，"self" 意思是自己，"study" 意思是学习。因此，"self-study" 的意思就是自己学习。
例句：
I have been self-studying Engpsh for two years. (我已经自学英语两年了。)
Self-study is an effective way to improve language skills. (自学是提高语言技能的有效方式。)
She has always been a self-study learner. (她一直是自学者。)