弃标函，也叫退标函，是招投标过程中的一种正式商业信函，内容简单说明弃标原因和表示歉意，同时对招标人给予的机会表示感谢，希望今后继续参与类似项目等等。退标函一般出现在中标公布之后到签订采购合同之前这段时间，甚至在签订采购合同之后也可以提出弃标，但是都需要正当的合理合法的理由，否则后果严重。
assistance [sistns] n. 帮助；援助；支持
I need roadside assistance.
我需要道路救援。
treatment [tri：tmnt] n. 治疗；疗法；诊治；对待
You should rate special treatment.
你值得受到特殊优待。
solitary [sltri] adj. 独自的；单独的；喜欢（或惯于）独处的
Writing is a solitary pastime.
写作是独自一人的消遣。
asperity [鎠perti] n. （尤指语言、态度）严厉；严酷
He spoke to the boy with asperity.
他严厉地对那男孩讲话。
维吉尔诗中的牧童最后终于结识了“爱神”，却发现他原来是铁石心肠之辈。
勋爵大人，看见有人在水中挣扎，自己却默然袖手旁观，等到他上岸后却殷勤相助，这不正是大人的所作所为吗？
在下孑然一身，四顾茫然时，没有得到任何人的恩惠；在下略有薄名时，已不想得到任何恩惠。
Is not a patron， my lord ，one who looks with unconcern on a man struggling for life in the water.
struggle for sth：为了……而斗争
...I have been long wakened from that dream of hope...
waken from：从……中醒来
本杰明·富兰克林致一位青年朋友
Benjamin Franklin to a Young Friend
My dear friend，
I know of no Medicine fit to diminish the violent natural inclination you mention， and if I did， I think I should not communicate it to you. Marriage is the proper Remedy. It is the most natural State of Man， and therefore the State in which you will find solid Happiness. Your Reason against entering into it at present appears to be not well founded. The Circumstantial Advantages you have in View by Postponing it， are not only uncertain， but they are small in comparison with the Thing itself， the being married and settled. It is the Man and Woman united that makes the complete human Being. Separate she wants his force of Body and Strength of Reason； he wants her Softness， Sensibility and acute Discernment. Together they are most likely to succeed in the World. A single Man has not nearly the Value he would have in that State of Union. He is an incomplete Animal. He resembles the odd Half of a Pair of Scissors.