介词短语
中文翻译：仅仅一天
同义词：
['in a day', 'inone day']
例句：
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1. I'll be back tomorrow; it willonly be a day.
我明天会回来，只是一天。
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2. She had to work allday and then she was exhausted, butshe still managed to finish the project withina day.
她整天工作，然后筋疲力尽，但她仍然在一天内完成了项目。
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3. The company is planningto open a new branch in aday.
公司计划在一天内开设新分店。