a guitar solo的用法和样例：
- The wannabe musicians can use this, to learn to play a tune, a guitar solo for example.
- Tom is going to buy either a guitar or a piano.
- Someone was twanging a guitar in the next room.
- He sat there strumming a guitar.
- The repeat of the guitar solo was tacked on later.
- Trouble is, I can't ever remember how to play the guitar solo!