Maybe you need background music to keep you focused or a snack or nap at a specifictime.
也许在某些特定的时刻你需要一些背景音乐来集中注意，或者需要一些点心或小睡。
Writers choose from a list of articles that DS needs, then you have a specifictime period to write the article and submit it.
作者从DS所需的文章列表中选择写作题材，然在指定时间内写作完毕并上传发表。
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