你家厨房洗涤池的出水管裂了个缝,于是你叫来管工将它修好了。几天后你收到一张40元的帐单,下方有个说明说,如果你30天内未能交款,将要增收10％(即4元)的劳务费。这时你觉得自己受了骗,但你没有别的路可走。要么马上付清这40元钱,要么以后去付44元。 The water outlet pipe in your kitchen sink was cracked, so you called the plumber to fix it. A few days later, you received a bill of 40 yuan. There is a description below that if you fail to pay within 30 days, you will have to increase the service fee by 10% (ie 4 yuan). At this time you feel that you have been cheated, but you have no other way to go. Either immediately pay the 40 yuan, or pay 44 yuan later.