Li-Fan Chen => YSITD: 所以只會有 n n n-n n where n is number 這三種組合? #5c0bb9198f3686a9f71f5003

Li-Fan Chen says to YSITD

所以只會有 n n n-n n where n is number 這三種組合?

at Sat, Dec 8, 2018 8:29 PM