self study

例句：

1. 1. I decided to self study forthe exam.
   我决定自学准备考试。
2. 2. Sheis self studying for her degree.
   她正在自学准备她的学位。
3. 3. Self studying has becomea popular way to learn new skills.
   自学已成为一种流行的学习新技能的方式。