形容词
中文翻译：高速的
同义词：
['high-speed', 'high-velocity例句：1. The train istraveling at a high speed.（火车以高速行驶。）']
例句：
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1. The train istraveling at a high speed.
火车以高速行驶。
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2. The car was moving at a high-speed when it hit the guardrail.
汽车在撞上护栏时以高速行驶。
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3. The aircraft is flying at a high-speed to reach its destination.
飞机以高速飞行，以到达目的地。