刺针

例句：

1. 1. The needle is inserted into the skin to draw blood.
   针被插入皮肤以抽取血液。
2. 2. The needle was used to treat the patient's pain.
   针用于治疗病人的疼痛。
3. 3. The needle was inserted into the patient's arm to administer anesthesia.
   针被插入患者的手臂中以施用麻醉。