Permanent wave
例子
She went to the salon to get a permanent wave, transforming her straight hair into bouncy curls.
她去沙龙做了烫发，将她直发变成了有弹性的卷发。
The 1980s were known for big hairstyles, with the permanent wave being a popular choice.
1980年代以大发型著称，烫发是一个受欢迎的选择。
