名词
中文翻译：主要部分
同义词：
['major components', 'essential parts例句：1. The main and auxiliary roads converge at the intersection.（主干道和辅助道路在交叉口交汇。）2. The main and auxiliary systems are designed to complement each other.（主系统和辅助系统旨在相互补充。）']
例句：
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1. The main and auxiliary roads converge at the intersection.
主干道和辅助道路在交叉口交汇。
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2. The main and auxiliary systems are designed to complement each other.
主系统和辅助系统旨在相互补充。
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3.The main and auxiliary functions of the system are well-defined.
系统的主功能和辅助功能定义清晰。