更多的人将英语当作第二门语言，而不是母语来用。
More people speak it as their second language than as their first.
实际上，你的移动电话将能当作室内无绳电话来用，不论你是在家或在办公室。
In effect, your mobile phone will double as an indoor cordless handset, both at home and in the office.
IntegrateInt 进程就是这样由三个小进程组成，它本身可以当作一个复合进程来用。
The IntegrateInt process, thus composed from three smaller processes, can itself be used as a composing process.
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