One needs the designers, and perhaps the regulators, before the builders and operators, and each group of workers in training has to know there is work waiting beyond graduation.
出自-2015年12月阅读原文
Pipitone says, such as if you're an extreme endurance athlete, training for a marathon, or you're a body builder.
2019年12月六级真题（第二套）阅读 Section B
柯林斯高阶英汉双解学习词典释义
N-COUNT
建筑工人；建造者
A builder is a person whose job is to build or repair houses and other buildings.