white walnut

例句：

1. 1. The white walnut tree is a symbol of the region's rich history and culture.
   白核桃树是该地区丰富历史和文化的象征。
2. 2.The white walnut oil is known for its high quality and unique flavor.
   白核桃油以其高品质和独特风味而闻名。
3. 3.White walnuts are often used in cooking as a substitute for other nuts due to their mild taste and nutritional value.
   由于其温和的口感和营养价值，白核桃常被用作其他坚果的替代品。