Two and half centuries later, in the first spring of the Civil War, Fort Monroe was a lonely Union redoubt in the heart of newly Confederate territory. Its defenders stood on constant guard.

两个半世纪之后，在内战爆发后的第一个春天，Fort Monroe成了新成立的联邦领土内为数不多的联邦军据点之一，士兵们一直绷紧神经保卫着。

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The valve consists of a guard cage, spring, valve disc, retaining ring and seat. It can be combined with pipe fittings such as reducing couplings, drain elbows, etc.

阀由警戒装置、弹簧、阀碟、扣环和阀座组成，可以和许多管件连接，如缩径管接头、排水弯头等。

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It features a self-sharpening hardened steel blade, a cast metal handle with tension spring to secure in any position, and a safety guard rail with handle lock.

它具有自我锐化淬火钢叶片的铸造处理与春季的紧张局势，以确保在任何位置，以及一个安全护栏手柄锁。

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U.S. and coalition forces were already on guard against an expected Taliban spring offensive even before bin Laden's death, Campbell added.

CNN: U.S. granted access to speak to bin Laden's wives