名词
中文翻译：Unknown
同义词：
['subject', 'point']
例句：
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1. The meeting had several important headings to cover.
会议有几个重要的议题要讨论。
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2. The report has a clear heading andconclusions.
报告有明确的标题和结论。
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3.The director gave the audience a brief headingon the company's new strategy.
总监对听众简要介绍了公司的新战略。