名词
中文翻译：Unknown
同义词：
['flash announcement', 'emergency announcement', 'sudden announcement']
例句：
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1. The company made a spot announcement about the new product launch.
公司突然宣布了新产品的发布。
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2.He received a spot announcement from his boss about a promotion opportunity.
他收到了老板关于晋升机会的突发通知。
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3. The local government issued a spot announcement to warn residents of the impending storm.
当地政府发布了一个突发通知，警告居民即将到来的暴风雨。