问题描述:
savings account为什么saving要加s?加s的规律是什么?
she was interested in science but she thought humanities could be easier.为什么science不加s 而humanity要复数?还有 high rate of casulaties.为什么要复数
she was interested in science but she thought humanities could be easier.为什么science不加s 而humanity要复数?还有 high rate of casulaties.为什么要复数
问题解答:
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