夹发针

例句：

1. 1. She used a hairpin to fix her hair.
   她用发夹固定了她的头发。
2. 2. The hairpin is the perfect accessory for this hairstyle.
   这个发型非常适合用发夹作为配饰。
3. 3. I need to use my hairpin to hold up my hair during the party.
   在派对上我需要用发夹来固定我的头发。