perm

1. N-COUNT If you have a perm, your hair is curled and treated with chemicals so that it stays curly for several months. 燙的卷發(fā)

...a middle-aged lady with a perm. …一位燙卷發(fā)的中年女士。

2. V-T When a hairstylist perms someone's hair, they curl it and treat it with chemicals so that it stays curly for several months. 燙 (卷發(fā))

She had her hair permed. 她燙了卷發(fā)。

3. N permutation的縮寫(xiě)→short for permutation