动词短语
中文翻译：立即
同义词：
['at once', 'instantly', 'promptly']
例句：
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1. He was on the spot when the fire broke out.
火灾发生时，他立刻在现场。
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2. The police were on the spot to investigate the crime scene.
警方立即赶到现场调查犯罪现场。
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3. The manager was on the spot to address the staff meeting.
经理立即到场召开员工会议。