elaborator

例句：

1. 1. The elaborator was responsible for the construction of the bridge.
   这位工程师负责建造这座桥。
2. 2. He is an expert in the field of elaboration and has produced many works of art.
   他在精制领域是一位专家，并创作了许多艺术作品。
3. 3. The elaborator carefully crafted each piece to ensure its quality.
   这位精制者仔细制作每一件作品，确保其质量。