This raises a major concern about the provider’s reliability—after all if their systems go down, so do all of the websites, data, and potentially business-critical applications they are hosting.
这引发了人们对于服务提供者可靠程度的高度关注——毕竟，如果服务提供者的系统出现了问题，存在里面的公司所有的网站、数据以及可能的重要的商业应用都会付之东流。
The parts that are common throughout all your systems go to a base class you always use.
在整个系统中都会使用的部分可以放到基类里面。
When the beneficial effects of activity on the heart and circulation and indeed on all the body's systems are absent, everything measurable begins to go awry.
当活动对心脏和血液循环及身体上所有的系统确实有利影响缺席，可衡量的一切开始出差错。
When the beneficial effects of activity on the heart and circulation and indeed on all the body's systems are absent, everything measurable begins to go awry.
当活动对心脏和血液循环及身体上所有的系统确实有利影响缺席，可衡量的一切开始出差错。
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