形容词
中文翻译：滞后的
同义词：
['slow-moving', 'delayed', 'lagging behind例句：1. The project is lagging behind schedule.（这个项目进度落后于计划。）']
例句：
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1. The project is lagging behind schedule.
这个项目进度落后于计划。
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2. The company's financial performance has been lagging for the past few quarters.
该公司过去几个季度的财务状况一直不佳。
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3. The team was lagging behind in their research due to lack of funding.
由于缺乏资金，团队的研究工作进展缓慢。