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

翻譯：所以不完全了解用兵的危害，就不能完全了解用兵的好處。

"The dead are always with us, and we are always with them."

The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.

哥本哈根解釋不僅僅是一種理論，而是一種思考量子世界的方式。

"The landscape holds its breath, waiting for something to happen, but nothing ever does."