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

我不是為了生活而唱歌，我是為了唱歌而生活。

The greatest single achievement of computer science is the development of the concept of the algorithm.

China's semiconductor industry must dare to challenge the high-end market and not settle for low-end manufacturing.

性別平等的未竟事業是我們這個時代的決定性挑戰之一。