An entertaining example comes from a recent class exercise where a group modeled a commercial aircraft.
一个有趣的例子来自近期一组人员建模一个商业航行器。
Usually, I don't spare time for exercise, but I value the physical education class at school.
通常，我不会花时间来做运动，但是我很重视学校的体育课。
The student on duty should hand out the exercise books before class.
值班生应该在上课前分发练习本。
You will do this for simplicity in this exercise, but it is often a best practice for a class not to be aware of who is intercepting it.
为了简便起见，在此练习中可以这样做，但是对于类来说，最佳实践是不要知道谁在拦截它。
In fact, you might want to bundle up the code you write to handle data source configuration and connection into a utility class (that's left for you as an exercise).
实际上可以将处理数据源配置和连接的代码打包成一个工具类(留给读者作为练习)。
Doing so provides a design for the class that the test will exercise, allowing you to focus on small chunks of code.
这样就为要测试的类提供了一种设计，这种设计使您每一时刻都只需集中考虑一小块代码。
When I was in college, I manipulated my class schedule to avoid public speaking encounters. The one mandatory speech class became an exercise in rote memorization.
在我上大学的时候，我特意不去选那些可能需要进行公众演讲的课程。唯一的一次强制演讲也成了机械背诵练习。
This will help combat the sadness and loneliness in a constructive manner. Exercise, swim, take an aerobics class, etc.
锻炼，游泳和参加有氧课程能有效的帮助你摆脱悲伤和孤独感的困扰。
Tests can be categorized according to the amount of code they exercise: a unit test verifies the functionality of a single software component, such as a function or a class.
可以将测试按照测试代码的多少分类：“单元测试”检验单一组件的功能，比如一个函数或者一个类。
Michelle and Casen's class, which has created the excellent Kids Read and Ride program, took this advice to heart and came up with 48 Fun Ways to Exercise. This is a good list for anyone.
米歇尔和卡森的班级曾建立了优秀的儿童阅读与骑车项目，他们非常在意我的建议，并提出了48条有趣的锻炼方法。
For an exercise in class definition, you'll use the caching factorial calculator of factorial.py, shown in Listing 4.
我们用高速缓存阶乘计算器factorial . py作为类定义的练习，如清单4所示。
There's a bit of code duplication in the Person class, but I'll leave that for a later refactoring exercise.
在person类中有一些重复的代码，但我把它留给稍后的重构练习。
The risks were irrespective of factors such as smoking, class and even exercise。
罹患疾病的风险甚至不会受到例如吸烟或运动这样的因素的影响。
Another witness told the Pittsburgh Post-Gazette newspaper that she was in an exercise class when a man came in a back door and started shooting.
另一名目击者接受《匹兹堡邮报》采访时指出，一名男子从后门进来开枪射击时，她正在健身课上。
But she also has a soft side: she teaches a seniors exercise class at her Baltimore church.
当然，她也有温柔的一面：在巴尔的摩的教堂里，教当地老年人健身。
Now let's begin our example by creating a simple class that we can exercise in our test scenarios.
现在，让我们建立一个测试场景的简单的类，来开始我们的示例。
"This happens during our working hours, so when I exercise here, it's like I'm working at the same time," she said, tying her hair back before the class started.
“这个项目是在我们的工作时间进行，所以我在这儿锻炼的时候，就好像同时也在工作，”在课程开始前，她一边说一边把头发扎到脑后。
Carol: I don't have time to study a language... I take an exercise class in the morning.
卡罗：我没时间学语言⋯⋯早上我要参加一个健身班。
Prioritizing tasks and activities may help you find the time to exercise, read a book, take a class, or do other things that you really want to do.
优先化任务和活动可以帮助你找到去锻炼、读书、上课或做其它你真正希望做的事情的时间。
Enroll in a noontime or an after-work exercise class. This will give you a chance to unwind and a way to relieve stress.
参加中午或下班后的锻炼班。这会给你带来一个放松的机会、帮你减压。
Usually I don't spare time for exercise, but I value the physical education class at school.
通常我并不特地拨出时间来做运动，但是我很重视学校的体育课。
I heard a great exercise that actors were doing in a class I was sitting in on.
我听说了一个不错的练习，演员们上一个训练班。
Assessing the class opinion of a teacher can be a difficult exercise if the students have different goals regarding the purpose of their education.
校方对学生给老师的评价标准进行评估也是很难的事情，因为每个学生都有不同的学习目的和目标。
And on the flip side, if you really think you need a class or a gym to work out, but you straight-up can't afford it, this can lead you to do exercise altogether.
另一方面，如果你真的觉得需要上课或者去健身房才能锻炼，但你又去不起，下列方法可以让你进行所有项目的锻炼。
Physical health: no less than 1 PE class and no less than 1.5 hours of exercise time are arranged each day in the school.
身体健康：学校每天不少于1节课的体育类课程，每天不少于1.5小时的锻炼时间。(锻炼活动照片)。
Usually I don't spare time for exercise, but I value the physical education class at school.
通常我没有空闲时间锻炼，但我重视学校的体育课。
Usually I don't spare time for exercise, but I value the physical education class at school.
通常我没有空闲时间锻炼，但我重视学校的体育课。
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