kavaine

例句：

1. 1.The traditional drink of Hawaii is kava.
   夏威夷的传统饮品是卡瓦。
2. 2. The herb has been used for centuries to promote relaxation and reduce stress.
   这种草药被用来促进放松和减轻压力，已有数百年的历史。
3. 3. Many people use kava as a natural remedy for anxiety and insomnia.
   许多人使用卡瓦作为焦虑和失眠的自然疗法。