Kalvar

例句：

1. 1. He is a famous Kalvar, known for his contributions to the field of physics.
   他是一位著名的凯尔瓦，因他对物理学的贡献而闻名。
2. 2. The Kalvar's house is located in the heart of the city.
   凯尔瓦的房子位于市中心。
3. 3. Kalvar was born in a small village in the countryside.
   凯尔瓦出生在一个乡下的小村庄。