41.authentic
真实的;真正的, 确实的; 有根据的
authentic news可靠的消息
an authentic signature真实手迹签字
authentic document真实的文件
42.authority当局，官方
authority to spend from debt receipts动用借款的授权
43 automatic detain自动扣留
automatic adj.自动的
The heating system in the hotel has an automatic temperature control.
旅馆里的取暖系统是自动调温的。
detain vt. 使延迟, 阻止, 留住;扣留, 拘留
detain sb. as a suspect把某人当做嫌疑犯而加以拘留
I was detained by an unexpected caller that morning.那天早晨我被一个突然的来访者缠住了。
44.average平均n.平均数
The average of 4, 8, and 60 is 24 .4、8和60的平均数是24。
平均；平均水平
What is the average rainfall for August in your country?你们国家八月份的平均降雨量是多少?
His results is the average.他的成绩平平。
45. bank draft银行汇票
46 basis for claim索赔依据
basis n.基础；根据
What is the basis of your opinion?你的观点的根据是什么？
The basis of this drink is orange juice.这种饮料的主要成分是橘子汁。
Did you claim on the insurance after your car accident?
你的车子出事之后，要求领保险金了吗？
I claimed the coat that the teacher found.我认领了老师找到的外套。
Did you claim on the insurance after your house fire?你家失火后你要求保险公司赔偿了吗?
47.Batch.No．批号
48.beneficiary受益人，收款人;受益者接受好处的人：
I am the beneficiary of your generosity.我是你慷慨大方的受益人
（这单词在开立信用证的时候，信用证上所包括的是当时人之一。）
49.bill n.
汇票，票据；议案；法案
The bill carried the Senate.; The bill was carried by the Senate.这项法案获得参议院通过。
bill in three parts三联单
How much was the bill for the electricity?电费是多少？
广告；招贴;节目单;纸币；钞票
a 10-dollar bill一张10美元的钞票
fill the bill适合
foot the bill付账；负责
50 bill of exchange汇票
exchange n.交换，互换
He gave me an apple in exchange for a cake.他给我一个苹果，换一块蛋糕。
Let's have an exchange of views on the matter.我们对这件事交换一下意见吧。
the stock Exchange股票交易所
vt. exchanged, exchanging;(常与for, with连用）交换，互换
to exchange contracts交换合同
to exchange words口角
51 blank endorsement空白背书
endorsement n. 背签(提单); 背书; 认可
on board endorsement已装船背书
（是在提单后面常见到的词，也是在外贸业务中，常用到的词。）
52 bonded area保税区
bonded adj.粘合而成的
bonded wood粘合的木材
a bonded debt债券债务
53 amount总数，总额n.数量
large amounts of money大量的金钱
In an invoice the amount of money should be written both in words and in figures.
发票上的钱数要用字和数码写出来。
54.annex附件，附录
an annex to the main building主楼的增建部分
55.as per 依据，按照
per 每
The fruit costs 30 pence per kilo.水果每公斤30便士。
40 words per minute 分钟40个单词
How much do you earn per week? 每周挣多少钱？
The work has been done as per instructions.工作已按照指示做完。
56 assortment分类，配码，花色品种
