acicular crystal

例句：

1. 1. Acupuncture is a traditional Chinese medicine practice that involves inserting thin needles into specific points on the body to treatvarious conditions.
   针灸是一种传统的中医疗法，通过在身体特定穴位插入细针来治疗各种疾病。
2. 2. During his recovery from surgery, he was advised to try acupuncture as it has been shown to reduce pain and inflammation.
   在他手术后的康复期间，他被建议尝试针灸，因为它已被证明可以减少疼痛和炎症。
3. 3. Acupuncture has gained popularity in recent years due to its effectiveness in treating chronic pain and other health issues.
   由于其在治疗慢性疼痛和其他健康问题方面的有效性，针灸近年来越来越受欢迎。