honing head

例句：

1. 1. The carpenter was honing his skills by working on a large project.
   木匠正在通过完成一个大项目来磨练他的技能。
2. 2. The chef was honing his knife skills by cutting vegetables for the meal.
   厨师正在通过切蔬菜来练习他的刀工。
3. 3. The engineer was honing his knowledge of the latest technology by attending conferences.
   工程师正在通过参加会议来提高他对最新技术的了解。