形容词
中文翻译：Unknown
同义词：
['immediate', 'instantaneous', 'swift', 'swiftly']
例句：
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1. The event was so sudden that it caught everyone off guard.
这个事件来得如此突然，让所有人都措手不及。
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2. He arrived at the airport in an instantaneous burst of speed.
他以惊人的速度瞬间到达了机场。
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3. The decision was made quickly and efficiently, reflecting the company's instantaneous response to the crisis.
这个决定被迅速而高效地做出，反映了公司对危机的即时反应。