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

If you fulfill your obligations everyday you don't need to worry about the future.

In mining, trust is earned through transparency and consistent action.

安全必須始終優先于生產目標。

The historian’s first duty is to the truth.

We must always question our assumptions and be willing to revise our understanding in light of new evidence.

我的座右銘是：為一點點感到滿足，但希望獲得更多。