There is another survey, sometimes referred to as the "payroll survey," that assesses 400000 businesses based on their reported payrolls.
出自-2013年6月阅读原文
The machine would not be a passive participant but would add its own suggestions, information, and opinions; it would sometimes take the initiative in developing or changing the topic and would have a personality of its own.
出自-2013年6月听力原文
Sometimes it's only when a difficulty is removed that we realise what it was doing for us.
出自-2013年12月阅读原文