#酷艾英语早起团[超话]# The measure of greatness in a scientific idea is the extent to which it stimulates thought and opens up new lines of research.·Paul Dirac http://t.cn/AXXMcsJ8
发布于 北京
艾力原力英语
#酷艾英语早起团[超话]# The measure of greatness in a scientific idea is the extent to which it stimulates thought and opens up new lines of research.·Paul Dirac http://t.cn/AXXMcsJ8