Maria 与Ann的故事
在协议层中，有两个故事，分享如下：
Example 1
Assue Maria and Ann are neighbors with a lot of common ideas.
假设玛莉亚和安是邻居，且有许多共同的思想。
However, Maria speaks only Spanish, and Ann speaks only English.
无论如何，玛莉亚只说西班牙语，而安只说英语。
Since both have learned the sign language in their childhood, they enjoy meeting in a cafe a couple of days per week and exchange their ideas using signs.
由于她们俩，在孩童时，都学习过符号语言，她们在一家咖啡馆开会，每个星期几天，并且她们交换各自的思想使用符号。
cafe/k'æfei/ 1. [n-count] A cafe is a place where you can buy drinks, simple meals, and snacks, in Britain, not usually alcoholic drinks.
cafe 是一个地方，你可以买到喝的、简单的食物和快餐，在英国，通常指不含酒精类饮料。
2. [N-count] n N, A street cafe or pavement cafe is a cafe which has tables and chairs on the pavement outside it where people can eat and drink.
街头咖啡厅或者路边咖啡厅是一个咖啡厅，在户外的路边有桌子或椅子， 在哪儿，人们可以吃和喝。
...an Italian street cafe... 一个意大利咖啡厅。
...sidewalk cafes and boutiques...露天茶店或者精品店
bilingual /b'ailiŋwəl/ 1. [adj] adj n bilingual means involving or using two languages bilingual 意味着涉及或者使用两种文字。
bilingual education. 双语教育
2. [adj] v-link adj. Someone who is biligual can speak two languages equally well, usually because they learned both language as a child.
双语种人是能够说两种语言很好地，通常，因为她们两种语言在孩提的时候。
He is bilingual in an Asian language and English.
她是双语种，一种是亚洲语，另一种是英语。
couple/kʌpəl/ (couples, coupling, coupled) 1. [Quant] quant of pl-n If you refer to a couple of people or things, you means two or approximately two of them, although the exact number is not important or you are not sure of it .如果你 指 a couple of 人或者事物， 你意思是两个或者大约他们中的两个，尽管精确数字并不重要或者你不确信他。
I think the trouble will clear up in a couple of days. 我想，麻烦在几天内将清除掉。
Across the street from me, there are a couple of police officers standing guarden... 从我这里沿着街看，有几个警察站在花园中。
2. [N-count-coll] A couple is two people who are married, living together, or having a sexual relationship. couple 是两个人结婚，生活在一起，或者有性关系。
The couple have no children. 这对夫妻没有孩子。
3. [N-count-coll] A couple is two people that you see together on a particular occasion or that have some association.
Couple 是两个人，你在一个特殊的场合看见的两个人或者有某些关联。
as the four couples began the opening dance. 有四对人开始跳舞。
4. 【verb】 usu passive, be v-ed with n, v-ed. If you say that one thing produces a particular effect when it is coupled with another, you mean that two things combine to produce that effet . 如果你说， 一件事情产生了一种特殊的影响，当它是与另一件事情couple. 你意味着结合产生那种效果。
Over-use of those drugs, coupled with poor diet, leads to physical degeneration. 过渡地使用这些药物，再加不良的饮食习惯， 导致身体机理的退化。
5. [verb] usu passive, be v-ed to n, be v-ed together
If one piece of equipment is coupled to another, it is joined to it so that the two pieces of equipment work togetherw.
如果一件设备coupled 另一件设备， 它被结合它，以致于两件设备一起工作。
The various systems are cpoupled together in complex arrays.
各种系统结合在一起，在一个复杂的阵列中。
Occasionally, they also use a billingual dictionary.
偶尔，她们也使用一本双语字典。
occasional /ək'eiʒənəl/ [adj].usu adj n, Occasional means happening sometimes, but not regularly or often.
occasional 意思是有时发生，但是不规律或者经常人。
Esther used to visit him for the occasional days and weekends.
埃斯特过常访问他，偶尔几天或者星期天。
Communication is face to face and happens in one layer as shown in Figure 2.1.
Example 2.2
Now assume that Ann has to move to another town becuase of her job.
现在，假设由于工作原因，Ann不得不到另一座城市。
Before she moves, the two meet for the last time in the same cafe.
在她离开之前，两个在同一家咖啡厅最后一次相会。
Although both are sad, Maria surprises Ann when she opens a packet that contains two small machines.
虽然，两个人很悲伤，玛莉亚很感激安，当她打开了一个包裹，内置两个小的机器。
The first machine can scan and transform a letter in English to a scret code or vice versa.
vice versa /v'aisə ve:'rsə/ [phrase] usu and/or/not PHR vice versa is used to indicated that the reverse of what you have said is true.
vice versa 被用来暗示，你所说的反过来，也能成立。
For example 'Women may bring their husbands with them, and vice versa ' means that men may also bring their wives with them.
例如，“妇女可以随同她们带来她们的丈夫，反之亦然”意味着男人也可以随同他们带来他们的妻子。
Teachers qualified to teach in England are not accepted in scotland and vice versa.
在英格兰有资格的教师，在苏格兰并不接受，反之亦然。
The other machine can scan and translate a letter in spanish to the secret code or vice versa.
另一台设备，能够扫描和翻译西班牙信件为密秘代码，反之亦然。
Ann takes the first machine; Maria keeps the second one.
安拿了第一台设备，玛莉亚留下了另一台。
The two friends can still communicate using the secret code, as shown in figure 2.2.
两个好朋友，仍然能够使们密秘代码交流，如图2.2所示。
communicatio between Maria and Ann happens as followws.
玛莉亚与安的交流如下。
At the third layer, Maria writes a letter in spanich, the language she is comfortable with.
在第三层，玛莉亚用西班牙语写了一封信，他所掌握的语言。
She then uses the translator machine that scans the letter and creates a letter in the secret code.
她接着使用转换机器，扫描信件，并且制作了一份用密秘代码写成的信。
Maria then put the letter in an envelop and drops it to the post office.
玛莉亚，接着把信放入信封里，然后把它投入邮局。
The letter is carried by post office truck to the post officce of the city where Ann lives now.
信件被邮局卡车拉到现在安所居住的城市。
In the post office, the letter is delivered to Ann residence.
在邮局，信件被送到安的住处。
residence/r'ezidns/ (residence) 1.[N-count]
A residence is a house where people live (Formal) hotels and private residence.
residence 是一间房子，哪里人们居们在宾馆或者私人住所。
2.【N-uncount】 You place of residence is the place where you live (Formal) differences among women based on age, place of residence and educational levels.
Ann uses her own machine to change the secret code to a letter in the English language.
安使用她自己的机器去转换密码代码为一封用英语写成的信件。
The communication from Ann to Maria uses the same process， but in the reverse direction.
从安到玛莉亚的交流使用同样的过程,但是顺序相反。
The communication in both direction is carried in the secret code, a language that neither Maria nor Ann understands, but through the layered communication, they can exchange idea.
双向的通讯是用密秘代码承载的，一种语言玛莉亚和安都不理解的语言，但是通过层通讯，他们能够交流思想。
