#酷艾英语早起团[超话]# If you can't explain it simply, you don't understand it well enough.·Albert Einstein http://t.cn/AXxSmaqD
发布于 北京
#酷艾英语早起团[超话]# If you can't explain it simply, you don't understand it well enough.·Albert Einstein http://t.cn/AXxSmaqD