他们似乎只在幕后工作，但是行政助理的工作对于公司的运作是很关键的。

It might seem like they work in the background, but their jobs are critical to the smooth running of a company.

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但是新政策公布之前，各网站的微博产品将只被允许在测试版本下运作。

Before new policies are announced, the microblog products of various websites will only be permitted to be operated under a 'Beta' version.

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目前，该服务只考虑改变与Sky Warrior无人机的运作方式。

And currently, the service is only considering changing the way it operates with the Sky Warrior UAV.

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