今日も勉強しましたから、頭が痛くなりました!
真的不容易。读书读到头痛!今天也见了Eugene和Ruting!讨论GA的事情!
“It always seems impossible until its done.” Nelson Mandela quotes (South African Statesman First democratically elected State President of South Africa (1994), 1993 Nobel Prize for Peace, b.1918)