It's a simple term that encapsulates the fact that relationships at work can reasonably be non-intimate, inconsequential, unimportant and even, dare I say it, disposable or substitutable.
2019年6月六級真題（第三套）閱讀 Section C
Another cause is our love of disposable products.
2015年高考英語安徽卷 完形填空 原文
Companies produce thousands of different kinds of disposable products: paper plates, plastic cups, and cameras, to name a few.
2015年高考英語安徽卷 完形填空 原文
These labels encourage style-conscious consumers to see clothes as disposable-meant to last only a wash or two, although they don’t advertise that –and to renew their wardrobe every few weeks.