名词
中文翻译：线尖
同义词：
['border', 'edge', 'point']
例句：
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1.The line cusp of the cliff marks the beginning of the descent.
悬崖的线尖标志着下降的开始。
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2. The car's line cusp was damaged in the collision.
汽车的线尖在碰撞中受损。
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3.The artist carefully drew a line cusp on the canvas.
艺术家小心翼翼地在画布上画了一条线尖。