What you actually pay for something is at least twice the listed price because of the energy, time, money needed to set it up, learn, maintain, repair, and dispose of at the end. Not all prices appear on labels. Actual costs are 2x listed prices.
经常要坦白地承认一项过失错误,这将使你的上司意料防备不及,才会给你一个机会去犯更多的错误。
The only thing that is constant is change.