There are two issues of language One in terms of software, one in terms of websites In term of websites, most websites are in English because most of the websites are based in the United States.

关于语言，有两个重要的方面,一方面是软件，另一个是网页,对网页而言，大多数以英语显示,因为大多数网页的服务器设在美国。

麻省理工公开课 - 媒体、教育、市场课程节选

Okay, so availability and cost become two key issues.

所以便利性和价格优势是两个主要原因

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Now at first glance...and in fact, I think, at second glance it's going to turn out to be true-- you might think that the answer to this question would depend on two basic issues.

乍看之下...实际上,只有深入考虑才能得出真相,在回答这个问题前,需要先弄清楚两点

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