��拼图碎片！
	作为一大要则，<i>一张记忆卡片应该有 &amp; 仅有一个概念。</i> 
	像这样：
</words>
</panel>

<panel w=264 h=180 bg="#e0e0e0">
<sim x=-88 y=-60 w=440 h=300 src="sims/singlecard/?card=mitochondria_1" class="small_card"></sim>
</panel>

<panel w=264 h=180 bg="#e0e0e0">
<sim x=-88 y=-60 w=440 h=300 src="sims/singlecard/?card=mitochondria_2" class="small_card"></sim>
</panel>

<panel w=264 h=180 bg="#e0e0e0">
<sim x=-88 y=-60 w=440 h=300 src="sims/singlecard/?card=mito