色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

The art of cryptography is to make the cost of breaking the system exceed the value of the information protected.

"Courage is not the absence of fear, but the will to act in spite of it."

永遠不要低估一個積極進取的團隊的力量——他們可以移山填海。