公元前

English Summary/英文概要: 406 AD, and the Roman Empire totters on the edge of the abyss.

Chinese Summary/中文概要：公元前406年，罗马的统治摇摇欲坠。

Wood trusses were probably first used in primitive dwelling s c.

木材的桁架最初可能是在公元前2500年左右被使用在最原始的住房中。

Wood trusses were probably first used in primitive dwellings c.

木材的桁架最初可能是在公元前2500年左右被使用在最原始的住房中。

D the real problem is that the Japanese themselves may not want to know. Unearthing the origins of the Japanese is a much harder task than you might guess.

在日本拥趸众多的一种理论认为，日本人是由在公元前 20 ， 000 年前的远古时代占据日本岛的冰川期人类逐渐演化而来。

Despite vanquishing his opponents in the long series of civil wars 49-45 BC, Caesar did little to address the underlying ills of the Republic. His concerns were first and foremost the defeat in the field of his political opponents.

尽管在公元前49-44年的一系列内战中击败了他的对手，凯撒仍然对改善日益衰败的共和制顽症少有助益，他所急切关注的是如何击败他的竞争对手。

There were cities in the vicinities of Beijing by the 1st millennium BC, and the capital of the State of Yan, one of the powers of the Warring States Period (473-221 BC), Ji, was established in present-day Beijing.

有城市的周边，北京的第一公元前3000年，和国的首都严，其中的权力战国时代（ 473-221年），继成立，在当今北京。

There were cities in the vicinities of Beijing by the 1st millennium BC, and the capital of the State of Yan, one of the powers of the Warring States Period ,Ji, was established in present-day Beijing.

在公元前第一个千年，北京附件散落着一些小城，燕国是战国时代(473-221 BC)最强盛的国家之一，它的首都蓟就是现在的北京。

There were cities in the vicinities of Beijing by the 1st millennium BC, and the capital of the State of Yan, one of the powers of the Warring States Period (473-221 BC), Ji, was established in present-day Beijing.

公元前1000年左右，北京一带就出现了一些城邦。战国时期这里成为燕国的首都，金在北京现在的位置建立了政权。

The teams faced each other at BC High only seven days earlier in a 3-1 Wildcats victory.

队面对对方在公元前高只有7天前在3-1野猫队的胜利。

The teams faced each other at BC High only seven days earlier in a 3-1 Wildcats victory.

车队面临对方在公元前高只有7天前在3-1野猫的胜利。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。