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

挑戰在于將限制轉化為機會。

The competent programmer is fully aware of the strictly limited size of his own skull; therefore he approaches the programming task in full humility, and among other things he avoids clever tricks like the plague.

Technology can help us monitor forests, but it's human commitment that will save them.

元素周期表是現實構建模塊的地圖。

We must balance economic growth with environmental stewardship.

不要因為它結束了而哭泣，要因為它發生過而微笑。