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先端， 尖端， せんたん

1. pointed end, tip, point, cusp (of a leaf, crescent moon, etc.), apex (of a curve) 2. forefront, vanguard, spearhead, leading edge

尖端(如草叶尖、新月尖等)，顶点(如曲线顶点)；前沿，先锋

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