a permanent wave的用法和样例：
- Do you want a permanent wave or a cold wave?
- I went to the hairdresser for a permanent wave yesterday.
- I want a permanent wave.
- Hairdresser:Yeah.A lot of my customers love it.(after shampooing) Do you want a permanent wave or a cold wav-e?
- Actually, want to absorb proper nutrition only, prevent excessive insolation and give or have a permanent wave, catch hair, hair colour and lustre still ameliorable.