发夹

例句：

1. 1. She wore a beautiful hairpin to the party.
   她在派对上戴了一朵漂亮的发夹。
2. 2. The hairpin was so small that it fit perfectly in her hair.
   这个发夹太小了，正好适合她的发型。
3. 3. I bought a new hairpin for my sister's birthday.
   我给妹妹的生日买了一个新发夹。