行家

例句：

1. 1. He is a seasoned wine expert who knows the best wines to pair with steak.
   他是一个经验丰富的葡萄酒专家，知道与牛排搭配的最佳葡萄酒。
2. 2. She's an expert in her field and has won numerous awards.
   她在她领域里是专家，并且赢得了许多奖项。
3. 3. The expert advised us on how to improve our garden design.
   这位专家给我们提供了如何改进花园设计的建议。