When Czerwinski et al. (2004) carried out a diary study of people in various different occupations they found that, on average, people spent 23% of their working day dealing with email.
2004年哲温斯基对不同领域的人作了跟踪调查，发现这些人平均花费一个工作日的23%的时间处理邮件。
When Czerwinski et al. (2004) carried out a diary study of people in various different occupations they found that, on average, people spent 23% of their working day dealing with email.
2004年哲温斯基对不同领域的人作了跟踪调查，发现这些人平均花费一个工作日的23%的时间处理邮件。
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