名词
中文翻译：构成句子的成分
同义词：
['constituent', 'constituent element例句：1. The sentence is composed of several words and phrases.（这个句子由几个单词和短语组成。）']
例句：
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1. The sentence is composed of several words and phrases.
这个句子由几个单词和短语组成。
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2.The sentence structure is crucial for understanding the meaning.
句子结构对于理解意思至关重要。
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3. In a sentence, each word has a specific role to play.
在句子中，每个词都有特定的角色要扮演。