<p class="ql-block">二樓樓梯</p> <p class="ql-block">下</p> <p class="ql-block">中</p> <p class="ql-block">上</p> <p class="ql-block">三樓樓梯</p> <p class="ql-block">下</p> <p class="ql-block">中</p> <p class="ql-block">上</p> <p class="ql-block">四樓樓梯</p> <p class="ql-block">下</p> <p class="ql-block">中</p> <p class="ql-block">上</p>