名词
中文翻译：四个部分
同义词：
['four parts', 'four-part system']
例句：
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1. The project is divided into four main sections.
这个项目分为四个主要部分。
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2. The team was organized into four teams for the competition.
团队被组织成四个团队参加比赛。
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3. The book is divided into four parts with an introduction and conclusion at the end.
这本书分为四个部分，以引言和结论结尾。