形容词
中文翻译：补充的
同义词：
['additional', 'supplementary']
例句：
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1.The textbook provides additional information about the topic.
这本教科书提供了关于该主题的额外信息。
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2. The teacher asked for additional volunteers tohelp with the project.
老师要求额外的志愿者来帮助这个项目。
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3. The company plans to introducea supplementary insurance plan for its employees.
该公司计划为其员工引入一项补充保险计划。