副词
中文翻译：以高速
同义词：
['quickly', 'swiftly']
例句：
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1.The car is moving at a high speed on the highway.
汽车在高速公路上以高速行驶。
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2.She runs at her own speed, not trying to keep up with others.
她按照自己的节奏跑步，不想和别人赛跑。
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3.The train was moving at a fast pace, leaving us behind.
火车以快速的速度行驶，让我们落后了。