Nilstain

例句：

1. 1.The Nilstain family has a tradition of celebrating Christmas every year.
   尼尔斯坦家族每年都有庆祝圣诞节的传统。
2. 2. Nilstain was the first person to discover the secret behind the rainbow.
   尼尔斯坦是第一个发现彩虹背后秘密的人。
3. 3. Nilstain's invention revolutionized the way we think about energy storage.
   尼尔斯坦的发明彻底改变了我们对能源存储的思考方式。