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

The most valuable resource we manage isn't timber—it's trust.《Timber and Trust》

"The task of the modern educator is not to cut down jungles, but to irrigate deserts."

建筑是關于創造人與自然之間的對話。

解釋：君子所說的話，可靠而且有證據。