请老师帮忙分析下这个英语句子的句子成分.The goal of early calculating machines was to simplifyThe goal of early calculating machines was to simplify difficult sums.请老师帮忙分析下这个的句子的句子成分.
问题描述：
请老师帮忙分析下这个英语句子的句子成分.The goal of early calculating machines was to simplify
The goal of early calculating machines was to simplify difficult sums.请老师帮忙分析下这个的句子的句子成分.
答
The goal （主语）of early calculating machines（修饰主语的后置定语） was （系动词）to simplify difficult sums（不定时短语作表语）
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