DKKI, [15.03.17 11:36]
[In reply to Khinchin]
你地成日講呢本 原來我係coursera睇左 係個作者開course

Khinchin, [15.03.17 11:37]
[In reply to DKKI]
一早喺 youtube 睇過…. Coursera 那個course… (Read more)