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<span><br /></span><p style="font-size: 17px; color: rgb(51, 51, 51); line-height: 30px;margin:10px 0px;font-weight: 900" data-flag="subtitle">劝学</p><p><a style="text-decoration: none;color:#4990E2">唐代</a><span>:</span><a style="text-decoration: none;color:#4990E2">颜真卿</a> </p>三更灯火五更鸡,正是男儿读书时。<br />黑发不知勤学早,白首方悔读书迟。 <br />