��しないで</span></label></li>
          <li><input id="showSentenceField" type="checkbox" onchange="Genki.tools.settings.toggleSentences(this);"><label for="showSentenceField"><span class="en">Show sentence fields</span><span class="ja">文の入力欄を見せる</span></label></li>
        </ul>
        
        <div class="center">
          <button class="button" onclick="Genki.tools.study();"><i class="fa">&#xf040;</i><span class="en">Study</span><span class="ja">勉強する</span></button>
     