Brittleness remains a problem when building steel structures in cold conditions, such as oil rigs in the Arctic.
2019年6月六级真题（第三套）阅读 Section A
柯林斯高阶英汉双解学习词典释义
VERB
(以不正当的手段)操纵，控制(选举、工作任命或比赛等)
If someone rigs an election, a job appointment, or a game, they dishonestly arrange it to get the result they want or to give someone an unfair advantage.