小熊猫自豪地说；“我拎不动它，可是我能滚动它啊！”
the little panda answers proudly, “I can’t lift it, but I can roll it.”
当你向下滚动它加载新的行，但也同时将已经存在的东西。
As you scroll down it loads new rows but also at the same time unloads what's already there.
“小猴子骄傲地回答：“我拿不动它，但是我可以滚动它。”
" The little monkey answers proudly, "l can't lift it, but l can roll it.
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