形容词
中文翻译：额外的
同义词：
['additional', 'extra', 'further', 'more']
例句：
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1. We need additional funds to cover the cost of the new project.
我们需要额外的资金来覆盖新项目的成本。
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2. The teacher added an extra lesson to the class schedule.
老师在课表上增加了一个额外的课程。
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3. I'll bring an extra pair of shoes just in case.
我多带一双鞋以防万一。