a terrible performance的用法和样例：
- After racking up a terrible performance in 2008, the Shanghai Composite index is up by 17 per cent this year.
- My knitting was in a terrible snarl.
- A terrible storm forced the ship to put back.
- Our team got a terrible walloping yesterday.
- Leaving home was a terrible wrench for him.
- The earthquake was a terrible catastrophe.