上海龙年纪行
自我从上海回来已经第不知道多少天了,这篇游记还没有写完。搁置久了,竟没了写下去的心气与墨水,只此残篇,留作我懒惰的纪念吧……自从二零一九年在宏帆中学开始中学生涯后,寒暑假几乎全部被竞赛占据,基本...
In mathematics you don't understand things, you just get used to them.
In mathematics you don't understand things, you just get used to them.