动词
中文翻译：延长
同义词：
['prolong', 'extend', 'enlarge', 'expand']
例句：
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1.The deadline for the project has been extended to next month.
项目的截止日期已延长到下个月。
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2.The company plans to extend its reach into new markets.
该公司计划将其业务扩展到新的市场。
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3. The teacher asked the students to extend their explanations.
老师要求学生们进一步解释。