Called the Playbutton, the new device came out of the facts that people were tired with CDs, but finding digital music downloads not entirely satisfying.
这款名为“播放按钮”的装置源于这样一个现状，即人们已厌倦了CD，却又发现下载数码音乐并不能让人完全满足。
Generally speaking, historical facts are used, it puts forward the idea of finding and understanding theory, rather than to prove that the idea.
一般来说，历史事实是用来提出设想、反证和理解理论的，而不是用来证明设想的。
Essentially, these must include finding of facts and application of statutory laws.
说明理由的内容包含事实认定方面和法律适用两个方面。
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