Every node has one and only one primary node type.
每个节点都有且只有一个主节点类型。
There is one and only one living and true God.
永活和真实的神是独一的。
Each ID should be a member of one and only one group.
每个ID应该为一个且仅一个组的成员。
Multiple Tasks can be associated to one and only one Issue.
多个任务可以联系到一个且唯一一个问题上。
There is one and only one integration stream for a project.
对项目有一个且只有一个集成流 。
With one mouse click, a user can choose one and only one option.
当鼠标单击时，用户能够且只能够选择一个选项。
Besides the root, each house has one and only one parent house.
除了根以外，每一个房间有且仅有一个父级房间。
OnSNMP is supported on a host that is running one and only one server.
OnSNMP由一个主机来支持，这个主机运行一个且只有一个服务器。
There must be one and only one definition of a variable in a program.
在一个程序中，变量有且仅有一个定义。
A child (or derived) class can have one and only one parent (or base) class.
一个子(或继承的)类只可以有一个父类(基类)。
Do people believe anyone has one and only one measure of attractiveness?
难道人们真的认为吸引力只有一个衡量的尺度吗？
Or, differently said: "A class should have one and only one responsibility".
另一种说法是：“一个类应该有且只应该有一个原则”。
My only gripe is that one main course and one dessert were unavailable.
我惟一的不满是还差一道主食和一份甜点。
In this case, you have only one operation and, therefore, only one function.
在本例中，您只有一个操作，因此也只有一项职能。
One day, he had only one cent left, and he was hungry.
有一天，他肚子饿了，只剩下一分钱了。
He only had one leg and one eye, but he was very smart and kind.
他只有一条腿和一只眼睛，但他非常聪明善良。
You will have many Activities for the project, but only one Task and one Request.
您将拥有许多这个项目的活动，但是只有一个任务和一个请求。
Give them the Last one: If you and your partner both enjoy something and there's only one left, let them have it.
把最后一个留给她：如果你和你的爱人都喜欢某样东西，而现在只剩下一个了，留给她吧。
Remember, at any given moment, you are in competition with one person and one person only – yourself.
要记住，在任何时候，你的竞争对手有且只有一个，那就是你自己。
One thing and one thing only concerned my soul.
只有一件事，一件触动到我灵魂的事。
SEO companies have one goal and one goal only.
说白了，SEO公司只有一个目的。
For example, an XML document may have one, and only one, root element.
比如，XML文档必须有且只有一个根元素。
What I began to see over and over again was that when most of us get upset it is for one reason and one reason only.
我再三发现的是，大多数人感到烦恼的时候，只为一个原因，只有一个。
One independent object can only and only needs to establish one property right.
一物只能且只须有一个产权。
The first is if you have more than one Item, and the second is if you have only one.
第一个是您拥有不止一个Item，第二个是您只有一个Item。
Each P8 object store has one, and only one, database storage area.
每个P 8objectstore有且只有一个数据库存储区域。
Each file can have only one owner and one group.
每个文件只能属于一个主人和一个组。
Each file can have only one owner and one group.
每个文件只能属于一个主人和一个组。
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