Mistakes are understandable, but when they are the result of chatting and socializing instead of concentrating on the work, they are unacceptable and a waste of everyone's time.

犯错是可以理解的，但如果是由于聊天或者自由活动引起，而不是专心工作以后的结果，那这些错误是不能被接受，也会浪费其他人的时间。

youdao

This waste would be unacceptable at any time, but at a time when we're fighting two wars and facing a serious deficit, it's inexcusable.

WHITEHOUSE: President Obama Signs National Defense Authorization Act

"The overuse of cost-plus contracts, high contractor overhead expenses, excessive contractor award fees, and unacceptable program and project delays all contributed to a significant waste of taxpayers' dollars, " the report said.

CNN: Iraq reconstruction history details waste, failures

"American health care operates with levels of unreliability, injury, waste and just plain poor service that long ago became unacceptable in many other industries, " says Donald Berwick, a Harvard pediatrician and a crusader for fixing flawed care.

FORBES: Fixing Hospitals