英语语法

<div> <h2>可数名词的单复数形式变化规则</h2> <ul> <li><strong>一般情况：</strong>直接在名词后加-s。<br> <em>例：book → books, pen → pens</em> </li> <li><strong>以s, x, ch, sh结尾：</strong>在名词后加-es。<br> <em>例：bus → buses, box → boxes, watch → watches, brush → brushes</em> </li> <li><strong>以辅音字母+y结尾：</strong>变y为i，再加-es。<br> <em>例：city → cities, country → countries</em> </li> <li><strong>以f或fe结尾：</strong>变f或fe为ves。<br> <em>例：knife → knives, leaf → leaves, half → halves</em> </li> <li><strong>特殊变化：</strong>部分名词有特殊的复数形式。<br> <em>例：man → men, woman → women, child → children, foot → feet, tooth → teeth</em> </li> </ul> </div>

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