catch on to

例句：

1. 1. She quickly caught on to the new software program.
   她很快就掌握了新的软件程序。
2. 2.The teacher explained the concept clearly, and the students all caught on to it.
   老师清晰地解释了这个概念，学生们都理解了。
3. 3.After watching the demonstration, they all caught on to how to use the new tool.
   观看了演示后，他们都能使用新工具了。