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 novel is the most powerful tool for understanding the Other.

"In computer science, we are always trying to find the balance between expressiveness and tractability."

"Experience is simply the name we give our mistakes."

激光技術的每一次突破都讓我們更接近解決困擾科學家數十年的謎題。

歷史是人類的集體記憶。

逝者是我們的老師，如果我們懂得傾聽。