它们让你通过做一次工作来省力，而不用你每次需要它的时候都重新做一遍。
They allow you to save effort by doing work once instead of repeating it each time you need it.
他每次服用一小滴，每月一次。
在我12岁之前，我的家人每两三个月就会搬一次家，每次都在加利福尼亚的庄稼丰收之后。
Until I was 12, my family moved around every two or three months, following the harvest of crops in California.
唯一可通过它运行数以千计的搜索方法是模拟用户每次的搜索请求，一次提交一个请求。
The only viable way to run thousands of searches against it is to simulate single users banging away, one search at a time.
这就要求每个选区做到人口数目一致，每次人口普查(十年一次)之后重新划分选区。
It requires districts to have the same population, so that their boundaries must be redrawn after every census (ie, once a decade).
他们一星期只来参加一次审判，每次都发生同样的事情：恐怖侵入他们日常的生活。
They only came to the trial once a week, and each time the same thing happened: the intrusion of horror into daily life.
甚至是我们一次评价一整批电影和每次评价其中一部电影，都会促成我们评价上的差异。
We even rate differently depending on whether we rate a whole batch of movies together or one at a time.
他们将使用每次迭代得到的日益高级的部件，一次一次地重新构建它。
They will rebuild it -- many times over -- using parts that are progressively more sophisticated with each iteration.
安装任务在构建映像时运行一次，而配置任务在每次部署映像时都要运行。
The installation tasks run once, during the image build process, and the configuration tasks run for each deployment of the image.
常常希望只准备和编译UPDATE语句一次，然后在每次执行更新时传递一个新值。
Often you will want to prepare and compile the UPDATE statement only once, and then pass in a new value every time you execute the update.
在每次注视面前的拇指与10-20英尺远的物体之间转换时，都进行一次深呼吸。
On each deep breath switch between focussing on your thumb and the 10-20 feet object in front of you.
DB 2只缓存一次查询本身及其访问计划，就可以在每次执行该查询时使用它们。
The query itself and its access plan are cached once by DB2 and are then ready to be used every time the query is executed.
每次他去狩猎——几乎每一次——他都能打到点东西。
"Like every time he goes hunting — almost every time — he kills something " Magan says clearly a little bit jealous.
您可以每次一个或者一次移动所有的页面。
呼吸是冥想的基础。每次呼吸恰似一次轮回——出生，成熟，衰弱，最终死亡。
Breathing is a universal foundation for meditation practice. Each breath is like the cycle of life itself - being born, coming to maturity, fading away, and finally dying.
她每六个月来经一次，每次为时两星期。
代码传输只会发生一次，但每次在另外一端遇到验证问题时都要传输数据。
Code transmission happens only once, whereas data must be transmitted every time you encounter a validation problem at the other end.
比方说我知道我的车总是需要油的，所以每次在加油站我都会给我的车加满油，不管这消费有多么惊人，我绝不会一次又一次25块地加。
I know I’ll always need gas in my vehicle. So instead of putting in $25 here and $25 there, I top off my tank every time I’m at the station regardless of the sticker shock.
这样吧，每天只允许自己检查一次电子邮件，每次30分钟。
不需要分隔符将每次传播与下一次传播分离。
No delimiters are required to separate each propagation from the next.
因此，只将它们编译（“准备”）一次，然后在每次执行时只传递谓词的字面值，这样做很有用。
Thus, it's useful to compile ("prepare") them just once and only pass predicate literal values for each execution.
因此，该测试有效地模拟了一次随机浏览和一次购买，因而，每次有两个事务。
Therefore, this test effectively simulated one random browse and one purchase, thus two transactions each time.
图1 -4：每次迭代与前一次迭代相比，均生成了更完整的发布版本。
Figure 1-4: Each iteration produces a more complete release than the previous iteration.
每次实验志愿者都得对300个物品进行出价，出的每一次价都会跟电脑随机产生的价格进行比较。
After each volunteer had bid for 300 items, one bid was taken and compared with a counterbid generated at random by a computer.
每次迭代之后，都会对结果进行分析，并调整计划，以进行下一次迭代。
After each iteration, the results are examined, and the plan is adjusted for the next iteration.
每个应用程序确信对其功能和资源的访问是安全的，而最终用户在每次会话中只需登录一次。
Each application is assured that access to its functionality and resources is secure, and end users have the convenience of signing in just once per session.
每个应用程序确信对其功能和资源的访问是安全的，而最终用户在每次会话中只需登录一次。
Each application is assured that access to its functionality and resources is secure, and end users have the convenience of signing in just once per session.
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