英语翻译一句话:the distance from the two foci to a point on the ellipse always add up to the same number for every point on the ellipse.请分析语法和句子结构,

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英语翻译一句话:the distance from the two foci to a point on the ellipse always add up to the same number for every point on the ellipse.请分析语法和句子结构,

英语翻译一句话:the distance from the two foci to a point on the ellipse always add up to the same number for every point on the ellipse.请分析语法和句子结构,
英语翻译一句话:the distance from the two foci to a point on the ellipse always add up to the same number for every point on the ellipse.请分析语法和句子结构,

英语翻译一句话:the distance from the two foci to a point on the ellipse always add up to the same number for every point on the ellipse.请分析语法和句子结构,
从椭圆两个焦点到椭圆上某一点的距离,对椭圆上的每一点来说,加起来都是相同的数.
distance是主语
add up to谓语(加起来,总计为)
the same number宾语
for every point 状语
on the ellipe:point的定语
椭圆有两个焦点,与椭圆上的某一点也可以作两条引线,虽然椭圆不同点到焦点的距离不同,但这两条引线的长度(距离)加起来是一个相同的数.