common st-John's wort

例句：

1. 1. Common st-John's wort is a natural remedy for anxiety and insomnia.
   常春藤是一种天然的抗焦虑和失眠药。
2. 2.The herbalist prescribed common st-John's wort as a treatment for his patient's depression.
   这位草药师为他的患者的抑郁症开出了常春藤作为治疗。
3. 3. Common st-John's wort has been used for centuries to treat various ailments.
   常春藤被使用了几个世纪来治疗各种疾病。