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

In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.

Quality is remembered long after price is forgotten.

The future of forestry lies in sustainable practices that balance economic growth with environmental stewardship.

能源的未來是低碳的，我們需要站在這一轉型的最前沿。

市場是企業(yè)的戰(zhàn)場，只有不斷適應市場才能生存。

我不與任何人競爭，我與自己競爭。