noun🔗Share防御工事，筑防。 The act of fortifying; the art or science of fortifying places to strengthen defence against an enemy."The medieval city's fortifications, including its high walls and deep moat, protected it from attack. "这座中世纪城市的防御工事，包括高高的城墙和深深的护城河，保护它免受攻击。architecturemilitarywarbuildingChat with AIVocabulary GamePractice Reading
noun🔗Share防御工事， 堡垒。 That which fortifies; especially, a work or works erected to defend a place against attack; a fortified place; a fortress; a fort; a castle."The ancient city's fortifications, including thick stone walls and tall towers, protected it from invaders. "这座古城的防御工事，包括厚厚的石墙和高高的塔楼，保护它免受入侵者的侵扰。militaryarchitecturebuildingwarChat with AIVocabulary GamePractice Reading
noun🔗Share加强，加固，强化。 An increase in effectiveness, as by adding ingredients."The cereal's fortifications of iron and vitamins are advertised on the box as promoting energy and good health. "这款麦片在包装盒上宣传说，它强化了铁和维生素，有助于增强活力、促进健康。foodmedicineChat with AIVocabulary GamePractice Reading
noun🔗Share闪光幻视, 先兆幻视 A jagged pattern sometimes seen during an attack of migraine.""Before the headache hit, Sarah saw shimmering, zigzag lines in her vision, like miniature fortifications being built in front of her eyes." "在头痛发作之前，莎拉看到眼前闪烁着锯齿状的线条，就像在她眼前构建的微型闪光幻视。medicinesensationChat with AIVocabulary GamePractice Reading
