扎克和约翰是友敌。他们在办公室相处得不错，同时又在团队内部相互竞争。

Zack is John's frenemy. They get along in the office but both of them work on internal competing teams.

youdao

That had a remarkable effect on reducing transmission of infectious diseases, in doctor's offices and hospitals.

这显著的减少了,在医生的办公室和医院内部,感染性疾病的传播

耶鲁公开课 - 生物医学工程探索课程节选