单弦琴

例句：

1. 1. The violinist played a beautiful piece for the audience.
   小提琴家为观众演奏了一首美丽的曲子。
2. 2. She learned to play the piano when she was very young.
   她很小的时候就学会了弹钢琴。
3. 3. The violin is one of the most popular instruments in the world.
   小提琴是世界上最流行的乐器之一。