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

Life is like a piano. The white keys represent happiness and the black keys show sadness. But as you go through life's journey, remember that the black keys also create music.

我在數學上花的時間越多，我就越興奮。

Each time you reach out to people， bring them a blessing； then they’ll be happy to see you when you bring them a problem.

The human heart, at whatever age, opens only to the heart that opens in return.

寫作是為了對抗沉默與遺忘。

可持續性不僅關乎技術，更關乎創造全新的生態系統。