Do aerobic exercise for a minimum of four days per week, 30 minutes at a time. Some examples of aerobic exercise include running, biking and swimming.
每周至少做四次有氧锻炼，例如慢跑、骑车和游泳，每次30分钟。
The examples may work with earlier versions of Perl and UNIX and with and other operating systems, but you should consider their potential failure to function as an exercise to solve.
在较早版本的Perl和UNIX以及其它操作系统上也可以使用本文中的示例，但应当将可能的功能故障作为练习来解决。
Although these examples may work with earlier versions of Perl, Linux, and other operating systems, if they fail, their failure to function should be considered an exercise for the reader to solve.
虽然这些示例也许可以和较早版本的Perl、Linux及其它操作系统一起工作，但是如果它们不能一起工作，那么它们无法工作的原因可以作为练习，让读者去解决。
The examples might be, “I want to exercise 3 days a week for a month”, and “I need to do 30 crunches every day for a month”, “In two months I want to be able to run 3 miles.”
例如“我想要在一个月内每周锻炼3天”，和“我一个月里每天要做30个仰卧起坐”，“在两个月里我要能够跑3英里。”
The examples may work with earlier versions of Perl and UNIX, and other operating systems, but their failure to function should be considered an exercise for the reader to solve.
文中的例子可能可以在更老的版本的Perl、UNIX以及其它操作系统下运行，但是如果不行的话，读者应当把它看作是一次练习来解决。
The examples may work with earlier versions of Perl and UNIX, as well as with other operating systems, but their failure to function should be considered an exercise for you to solve.
示例可以与早期版本的Perl和UNIX以及其它操作系统一起使用，如果它们不能工作，对您来说，可以把它当成练习来解决。
Many living examples are illustrated to do strenuous exercise or watches are subjected to violent shaking will affect the accuracy of travel time, but also a large error, the extent and range.
很多生活中的实例都说明做剧烈运动或手表受到剧烈晃动是会影响走时精度的，而且都是偏快的大误差，程度且不等。
This paper analyses and computes the optimal exercise price of the American put option, by using the "FFT-RK" method. At last, numerical examples show that this method is efficient and accurate.
利用快速傅里叶变换法加龙格-库塔法对期权的最佳执行价格进行了分析和计算，最后通过数值算例说明了这一方法的有效性和准确性。
Four methods of organizing physics exercise classes are suggested and their functions are expounded by giving examples.
提出上好物理习题课的四种方法，通过举例阐述其作用。
Writer treat 30 examples of this disease adopting electric acupuncture and maneuver an physical exercise therapies in out-patient department, after observation, and had certain curative effect.
在门诊部工作期间，笔者采用电针配合手法以及体育疗法治疗本病30例，有一定疗效。
He says the exercise reinforced the need to use clear, engaging language and to substantiate assertions with concrete examples.
他表示，这种练习强化了使用明确、迷人语言的必要性，并强调用实例来证明论点。
He says the exercise reinforced the need to use clear, engaging language and to substantiate assertions with concrete examples.
他表示，这种练习强化了使用明确、迷人语言的必要性，并强调用实例来证明论点。
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