learn a thing or two

例句：

1. 1. I will learn toplay the piano when I grow up.
   我长大后会学会弹钢琴。
2. 2. Helearned a lot from histeacher's guidance.
   他从老师的指导中学到了很多。
3. 3. Learning anew language is a great way to broaden one's horizons.
   学习一门新语言是拓宽视野的好方法。