Time, however, has a way of bringing changes. Cities organized fire departments. Firemen became professionals. They are paid to do their job.
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firemen became professionals
消防员成为专业人员
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Firemen became professionals. They are paid to do their job.
VOA: special.2009.05.17
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