The government implemented a rule that the guinea is worth twenty-one shillings.
政府实施了一项规定，即一几尼价值21先令。
We have a rule of no screen time during the week, unless it's clearly educational.
我们有一个周内不能看电视的规定，除非那档电视节目很有教育意义。
In some schools, it is a rule that mobile phones are strictly forbidden, and if students break the rule, they will be punished.
有些学校规定严禁使用手机，如果违反该规则，学生就会受到惩罚。
As a rule, however, such attacks have been aimed at causing damage rather than taking life.
然而，通常此类攻击意在造成破坏而非要人性命。
If so, you have followed a rule.
如果是这样的话，你已经遵守了一条规则。
As a rule, our academic year begins early in September.
我们的学年通常在九月初开始。
This is a rule that people from all walks of life must follow.
这是各行各业的人都必须遵守的一条规则。
It's a rule that students mustn't bring mobile phones to our school.
学生不能带手机是我们学校的规定。
We make it a rule that each of us cleans the bedroom one day a week.
我们每个人每周打扫一天卧室，这是我们的规定。
There was a rule: as he passed through the factory, he could not turn back.
有一条规定：当他经过工厂时，不能回头。
Villagers, as a rule, do not purposefully make a foot path to the next village.
一般来说，村民不会特意开辟一条通往临近村庄的小径。
If you break a rule, your punishment might be small, like losing a turn in a game.
如果你违反了规则，你的惩罚可能很小，如在游戏中输掉一个回合。
Despite Andrew Jackson's inclination to be a strong President, Democrats as a rule believed in limited government.
尽管安德鲁·杰克逊想成为一个强势的总统，然而民主党人通常会信任受限的政府。
Last year, Florence made a rule saying that tourists would face fines of up to 500 euros if caught eating in the street.
去年，佛罗伦萨制定了一项规则，游客如果被发现在街上吃东西，将面临最高500欧元的罚款。
Under such a rule, students still have some freedom, and they learn how to improve self-discipline and live with new technologies.
在这样的规定下，学生仍有一些自由，他们学会如何提高自律能力和与新技术共处。
As a rule, mirroring means that conversationalists enjoy their communication and that there's a certain level of agreement between them.
通常，镜像意味着谈话者享受他们的交流，并且他们之间有一定程度的共识。
My dad has a rule that we have to carry our pumpkins back home, and as the eldest child I have an advantage—I carried an 85-pounder back last year.
我父亲有个规定，就是我们必须把南瓜搬回家，作为最大的孩子，我有一个优势——去年我搬回了一个85磅的南瓜。
As a rule, it is essential that the poor's productive capabilities be mobilized and the conditions for developing these human resources be improved.
通常，必须调动穷人的生产能力，改善开发这些人力资源的条件。
In Lord of the Flies, the characters overcome a similar problem by instituting a rule that whoever has a designated conch shell gets their turn to talk.
在《蝇王》一书中，角色通过构建下面的规则克服了类似的问题：谁拿到了指定的海螺壳，谁就可以发言。
Teachers and students alike have experienced the curious paradox that beginners, as a rule, tend to think too little about what they are doing because they think too much about what they are doing.
老师和学生都有过这样奇特的矛盾经历：一般来说，初学者往往对自己正在做的事情（的本质）想得太少，因为他们对自己正在做的事情（的细节）想得太多了。
Figure 2. Writing a rule to select documents.
图2.编写一条规则以选择文档。
A rule is imperative and logically executable.
规则是强制性的且在逻辑上是可执行的。
Select a rule from the list of rules that displays.
从显示的规则列表中选择一个规则。
Execution time: What happens when you execute a rule?
执行时间：在执行规则时发生了什么？
As a rule, don't save calculated values in a database.
作为规则，不要把计算得出的值保存在数据库中。
But, like a rule in Greek grammar, there are many exceptions.
但是，就像希腊语法中的一个规则规定的那样，存在着很多例外。
But, like a rule in Greek grammar, there are many exceptions.
但是，就像希腊语法中的一个规则规定的那样，存在着很多例外。
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