1. 建筑工人；建造者
A builder is a person whose job is to build or repair houses and other buildings.

1. someone who contracts for and supervises construction (as of a building)

Synonym: constructor

2. a person who creates a business or who organizes and develops a country

e.g. empire builder

3. a substance added to soaps or detergents to increase their cleansing action

Synonym: detergent builder