别针

例句：

1. 1.She used a pin to hold her dress together.
   她用别针把裙子固定在一起。
2. 2. The doctor gave me a needle for the pain.
   医生给我打了一针来缓解疼痛。
3. 3. She pinned up her hair with a small pin.
   她用一个小别针把头发扎起来。