Sometimes convenience or practical necessity or just the fancy of an influential person can establish a fashion.
有时，某种便利或实际的需要，或仅仅是一个有影响力的人物的幻想就可以引领一种时尚。
We need to find the causes and deal with them - but that's not always easy, or practical.
我们必须找出原因加以解决——不过通常实际操作起来并不容易。
That is a straightforward solution, but it is not always possible, or practical, for all situations.
这是一种比较简单的解决方案，但对于各种各样的情况，它并不总是可行的或实用的。
These skills or capabilities are extremely important , be it to one's academic career or practical work.
这些技巧或能力，无论对未来的学术生涯或实务工作都极为重要。
Do not engage in horseplay or practical jokes at rig site.
井场上不允许胡闹或搞恶作剧。
Admittedly, however, this isn't always possible or practical.
但要承认，这不是始终可能或可行的。
The directions are too vague for either theoretical information or practical use.
这些说明对理论知识或实际应用来说，都太模糊。
To present by experiments, examples, or practical application; explain and illustrate.
通过实验、例子或实际应用表明；解释并说明。
What skills or practical experience would you like to gain from your program in the U. S.
您希望通过这次到美国培训获得什么样技能或实践经验？
Do you think which is more important, theory study or practical skill training for college students?
你认为对大学生来说，理论学习重要还是实践锻炼重要？
The development of advanced theoretical or practical research skills for the areas of specialization.
在专业领域中开发先进理论研究技能或实践研究技能。
The flocculating agent was used on the treatment of printing and dyeing wastewater which was simulating or practical.
应用该复合絮凝剂对印染模拟污水及实际污水进行处理。
Backward compatibility is required in cases where a contract or practical necessity defines the need to support previous versions.
如果合约或实际情况要求支持以前的版本，就必须保持向后兼容性。
These skills or capabilities are extremely important whether with regards to the writer’s future academic career or practical work.
这些技巧或能力，无论对未来的学术生涯或实务工作都极为重要。
How to set seismic joint suitably and how to adopt simple or practical methods for determining seismic joint width were deeply studied.
深入研讨了合理的防震缝宽度以及简便、实用的防震缝宽度的确定方法。
Many workers across the public and private sector do very physically demanding jobs where carrying on until 66 is not a safe or practical option.
许多人在公共部门和私人企业从事的是体力损耗很大的工作，在这样的岗位工工作到66岁并不安全或者可行。
Either on account of theoretical or practical consideration, creditors' interests should be protected for their status as investors in the business.
无论理论上还是实践中，债权人作为企业的投资者，其利益都应受到保护。
Any communicative or practical use of English is better than study in grammar for its own sake.... Whatever you do, don't study grammar in isolation.
练习交际性、实用型的英语比单单学习语法有效得多，不管怎样，不要孤立的学习语法。
We became a true community precisely because we needed each other's goodwill and assistance, and could not buy our way out of difficulties or practical problems.
正是因为我们无法花钱解决问题和一些实际的困难，需要彼此的善意和协助，我们才能成为真正的社区。
Mathematics problems solving or solving problems means the process of using mathematics knowledge and methods to solve mathematics or practical problems creatively.
数学问题解决或解决问题是指创造性地应用数学知识和方法解决数学或实际问题的过程。
Interventions that cannot be tested in an RCT for ethical or practical reasons are sometimes included in the categorisation table and are identified with an asterisk.
因为道德或现实的原因而不能进行随机对照试验的干预，我们会将之列入分类表并以星号标明。
Perhaps you're afraid that you'll look weak – but the truth is, none of us achieve anything alone. We've always got support (whether emotional or practical) along the way.
也许你会觉得这样的自己看起来很弱小——但其实，没有任何人独自完成一件事情，我们经常得到帮助（不管是精神支持还是物质支持）。
There is often a tendency in medical and especially in psychiatric circles to contradict the theories of psycho-analysis without any real study or practical application of them.
在医学尤其是精神病学领域有一种普遍否定精神分析理论的倾向，而且这种否认是在没有任何研究和对精神分析的实际应用的情况下的。
There is often a tendency in medical and especially in psychiatric circles to contradict the theories of psycho-analysis without any real study or practical application of them.
在医学尤其是精神病学领域有一种普遍否定精神分析理论的倾向，而且这种否认是在没有任何研究和对精神分析的实际应用的情况下的。
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