The fortification should be breached.

这一防线应该被攻破。

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The researchers concluded that the fortification did not produce the increase.

研究人员得出结论，认为增添铁盐不能造成血红蛋白的增高。

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The fortification surrounded a water spring and is thought to have protected the ancient city's water source.

该防御工事围绕着一个泉水，被认为是为了保护古城的水源。

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She paid a short visit to a Royal Marine base at The Citadel, where she symbolically touched the key to the fortification.

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Ms. Warner recounts what life was like in poor areas before the introduction of vitamins into food substances, the fortification of white flour and milk, and the widespread availability of items like orange juice: Many people suffered from rickets (because of insufficient vitamin D and calcium), scurvy (vitamin C), pellagra (vitamin B3) and beriberi (vitamin B1).

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Individually, they conceptualize and execute innovative ideas that are deep-rooted in the ultimate end: The social and economic fortification of the people.

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