1、
A palmtop's ancestry owes more to the electronic calculator bthan to the PC.
掌上计算机的祖先更象是电子计算器而非个人计算机.
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2、
A palmtop's ancestry owes abundance to the electronic calculator than to the PC.
掌上电脑的祖先更象是电子计算器而非独立个体电脑.
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