名词
中文翻译：非正式记录
同义词：
['unofficial record', 'informal document']
例句：
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1.The official record of the event was that it had taken place in the rain.
官方记录显示，该事件发生在雨中。
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2. He kept a record of all his expenses for tax purposes.
他为了税务目的保留了所有开支的记录。
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3. The informal record suggests that the meeting took place on Saturday afternoon.
非正式记录表明，会议是在周六下午举行的。