形容词
中文翻译：补充的
同义词：
['supplementary', 'supplementing']
例句：
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1.The teacher provided additional resources to help the students understand the concept better.
老师提供了额外的资源，帮助学生更好地理解这个概念。
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2. The company's product line is complementary to its competitors' offerings.
该公司的产品系列与竞争对手的产品互补。
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3. The research was designed to provide a more comprehensive understanding of the issue.
这项研究旨在提供对这个问题更全面的理解。