<p class="ql-block">o lonely is the lamb beneath a willow tree, / a willow tree, a willow tree, now standing dead; / beyond the green there spread the heavens cold and free, / and near, a stone is saying things unheard, unsaid.</p><p class="ql-block"><br></p><p class="ql-block">（抑扬格六音步，abab）</p><p class="ql-block">～～～～～～～～～～～～～～～</p>