形容词
中文翻译：高速的
同义词：
['fast', 'rapid', 'high-speed例句：1. The train is traveling at a high speed.（火车以高速行驶。）']
例句：
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1. The train is traveling at a high speed.
火车以高速行驶。
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2.The car accelerated to high speed on the highway.
汽车在高速公路上以高速加速行驶。
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3.The aircraft flew at high speed over the city.
飞机以高速飞越城市上空。