名词
中文翻译：圆周速度
同义词：
['circumferential velocity', 'circular speed例句：1. The car accelerates to a high speed before it reaches the top of the hill.（汽车在到达山顶之前加速到高速。）']
例句：
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1. The car accelerates to a high speed before it reaches the top of the hill.
汽车在到达山顶之前加速到高速。
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2. The ship circled around the island for several hours before returning to port.
船绕着岛屿转了几小时才返回港口。
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3. The ballistic missile flew at a constant speed around the earth's surface.
弹道导弹以恒定的速度绕地球表面飞行。