他在大学里教授STS课程，研究科技与社会的关系。

He teaches ___STS courses at the university, focusing on the interaction between science and society.

我的车需要STS来保持性能。

My car needs an ___STS to maintain its performance.

STS项目在2000年代结束了其历史使命。

The ___STS program concluded its historic missions in the 2000s.

特种战术中队负责执行最危险的救援任务。

The ___STS is responsible for carrying out the most dangerous rescue missions.