We must defend civil society's freedom to operate and do this essential job.

我们必须保护民间社会，使其能够自由地进行运作并开展这项重要工作。

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Ability to stand, walk and sit and continuously perform essential job functions.

能持续因工作需要的站立，行走等。

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Ability to effectively perform all of the above mentioned essential job functions.

能够有效的从事所有以上描述的基本工作职责。

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Perhaps more, for people can see that he does an essential job under the toughest of conditions.

ECONOMIST: The poor

These are things every leader should consider an essential part of their job responsibilities.

FORBES: Why Aren't Leaders Delivering the Basics?

Therefore, training and certification is essential for preparing prospective job candidates to work in cloud-related jobs.

FORBES: Almost 1.7 Million Cloud-Related Jobs Went Unfilled in 2012: Estimate