But to ward against the external foes requires constant vigilance.
不过要战胜外在的敌人得要有持续不断的警惕。
True agility requires constant communication throughout the organization.
真正的敏捷性需要整个组织中不断的交流。
It's a world so full of ambiguities that it requires constant interpretation.
很多时候这个世界经常模棱两可，需要人们不断诠释。
It is fundamental that all members of a team be "on the same page"; that requires constant communication.
团队的所有成员保持一致是基础；这需要进行不断的沟通。
This requires constant tuning of our algorithms, as new content-both good and bad-comes online all the time.
这要求不断调整我们的算法，因为新内容(不管是好还是差)一直源源不断的涌现。
I feel that photography requires constant experimentation and learning.
我觉得摄影是需要不断的尝试和学习的一个过程。
This requires constant hard work and persistence, and we have already seen the rewards of this effort.
这要求坚持不懈的勤奋工作和坚忍不拔的意志，同时，我们也已经看到了这些努力的回报。
Goal setting and achievement is an organic process that requires constant attention and frequent adjustments.
目标设定与事业成就是一个有机过程，需要持续关注和频繁调整。
Successful service implementation requires constant validation and updates based on the original SOA governance framework.
成功的服务实现需要对原始SOA治理框架进行不断的验证和更新。
Instead, defending a system requires constant vigilance to create, find, apply, test, and adjust any number of individual measures.
相反，要想保护系统，必须时刻保持警惕，不断创建、寻找、应用、测试和调整许多安全措施。
As the bridge of intercultural communication, translation requires constant language choosing according to different context of culture.
翻译作为跨文化交际的桥梁，要求译文选择要顺应不同文化语境。
A successful model requires constant feedback and collaboration from the different process stakeholders at different stages of the modeling process.
一个成功的模型需要不同流程的参与者在建模流程的各个阶段进行不断地反馈和协作。
This control valve is a weir diaphragm valve and has created a clogging congestion point in the flow system that requires constant maintenance.
这个控制阀是一个堰式隔膜阀，在流体系统中形成一个堵塞点，需要经常进行维护。
Although it accounts for only 2 per cent of our body weight, it consumes 20 per cent of our entire energy intake, and it requires constant nourishment.
虽然它仅仅占有我们体重比重的百分之二，它消耗的能量需要占我们全部能量供给的百分之二十，而且它还需要不间断的能量补给。
The pursuit of balance requires constant adjustment as your life shifts but every time I really try for the middle I end up happier about my life. And that's truly the point.
这种对平衡的追求要求随着你的生活转变不断进行调整，但是每次我试着求得平衡，我的生活就更加开心，这才是最重要的。
Whole human blood, required in modern therapy, cannot be stockpiled because it is extremely labile; it requires constant refrigeration and precise technical control and handling;
现代治疗所需的全血是无法储存的，因为其极其不稳定，它需要持续不断制冷及精确的技术控制和处理；
Whole human blood, required in modern therapy, cannot be stockpiled because it is extremely labile; it requires constant refrigeration and precise technical control and handling;
现代治疗所需的全血是无法储存的，因为其极其不稳定，它需要持续不断制冷及精确的技术控制和处理；
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