学生志愿者贡献自己的时间来帮助交换生。
The student volunteers contributed their own time to helping exchanged students.
市场和街道上挤满了来进行物物交换的人。
The market-place and street were crowded with those who'd come to barter.
它们培养菌类，将蚜虫当作家畜来饲养，发对军队作战，使用化学喷雾来警告和迷惑敌人，捕获奴隶，雇佣童工，并且不停地交换信息。
They farm fungi, raise aphids as livestock, launch armies to war, use chemical sprays to alarm and confuse enemies, capture slaves, engage in child labour, exchange information ceaselessly.
到了16世纪中叶，金融家和商人普遍接受汇票来代替黄金或白银进行商品交换。
By the middle of the sixteenth century, financiers and traders commonly accepted bills of exchange in place of gold or silver for other goods.
棱皮龟通过将鳍状肢底部的血管排列成逆流交换系统来完成这一过程。
The leatherback accomplishes this by arranging the blood vessels in the base of its flipper into a countercurrent exchange system.
更令人印象深刻的是，真菌的DNA分析表明，蚂蚁通过与邻近的蚁群定期交换和共享菌种来改善或修改真菌。
Even more impressively, DNA analysis of the fungi suggests that the ants improve or modify the fungi by regularly swapping and sharing strains with neighbouring ant colonies.
你知道交换生什么时候来我们学校吗？
Do you know when the exchange students will come to our school?
作为交换生，艾伦来齐齐哈尔已经一年半了。
As an exchange student, Alan has been in Qiqihar for one and a half years.
男孩告诉女孩，他将用他所有的球来交换她的糖果。
The boy told the girl that he would give her all his balls in exchange for her candies.
然后可以使用这个密钥对通过加密来利用数字身份安全地交换文本。
This digital identity can then be used to exchange text securely by encryption using the key pair.
例如，你可以编写代码来告知那些通信对象将通过NMR被用于与您的组件交换消息。
For example, you can write code that tells which communication objects will be used to exchange messages with your component via the NMR.
这些小部件使用一种xml交换格式来与服务器交换数据。
The widgets use an XML interchange format to exchange data with the server.
或者想象一下，可以让移动设备连接其他设备来交换图片和视频。
Or how about a mobile device that connects with other devices to exchange pictures and videos.
因为财富的生产者已经生产出有用的商品，所有他可以用这些来交换其它商品。
Again the wealth producer, because he has produced something useful, can exchange it for other goods.
此外，应用程序使用事务管理器来确保数据交换的可靠性。
In addition, the application USES a transaction manager to ensure the reliability of data exchange.
后续的程序可以使用这个管道(使用相同或不同的容器)来交换数据。
Subsequent programs could use the same channel, with the same or different containers, for their exchange of data.
使用项目交换功能，来导入带有预定义uml元素的已存在UML项目。
Import an existing UML project with predefined UML elements by using the project interchange capability.
使用soap头信息来交换安全性令牌和携带消息的时间戳。
Use SOAP header blocks to exchange security tokens and to carry time stamps of messages.
此外，还使用了JSON来最小化进行异步调用时的数据交换。
In addition, JSON is used to minimize data exchange when making the asynchronous calls.
使用处理层的集成，企业可以在应用程序之间交换数据来完成业务处理。
With process-level integration, enterprises can exchange data across applications to fulfill a business process.
远程服务使用封送技术来交换复杂数据类型。
Remotable service interfaces make use of marshalling technology to exchange complex data types.
导出和导入都需要一个接口定义来描述交换数据的确切格式。
Both the export and the import need an interface definition that describes the exact format of the data that is exchanged.
生活只有在人们每天不断地用生活本身来交换生活以外的东西时，才有意义。
Life has meaning only if one barters it day by day for something other than itself.
许多变体使用这些不同安排的组合来充分利用它们的交换空间。
Many use a combination of these different arrangements to make the best of their swap space.
如果有某个分区可用，您可以按照上面在配置交换分区部分中的介绍来准备它。
If you have a partition available, then you should prepare it as outlined above in the Configuring swap space section.
您甚至可以使用它来识别在某个未经标识的端口上所交换的数据的类型。
You can even use it to identify the type of exchanged traffic on an otherwise unidentified port.
但是在小车里的那些时间是不能用奖学金来交换的。
But I wouldn't swap an Open Scholarship for the hours in the Mini.
市场中每种商品都已相应的数量单位来交换，我们交换“蒲式耳”的小麦；“包”的香烟(20根)；“一对”的鞋带；一台电视机……等等。
Every good on the market exchanges in terms of relevant quantitative units: we trade in "bushels" of wheat; "packs" of 20 cigarettes; "a pair" of shoelaces; one TV set; etc.
当矿工约翰用黄金来交换商品的时候，他正进行物物交换。他正用财富交换财富。
When John the miner exchanges gold for goods, he is engaged in an exchange of something for something. He is exchanging wealth for wealth.
相反，它们通过交换消息来通信。
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