be at war (with sb)
at war 表示处于交战状态,常与 with 连用说明交战对象。
The two countries have been at war for three years.
这两个国家已经交战三年了。
战争；交战；作战
wars — plural of war
长期斗争；激烈较量；战争状态；“战争”牌戏；比大小的扑克牌游戏；国家之间或民族、种族或其他大型群体之间有组织的大规模武装冲突,通常但不总是涉及军事力量的积极参与。；对敌发动武装冲突
Armed conflict between countries or groups, or an individual instance of it.
国家之间或民族、种族或其他大型群体之间有组织的大规模武装冲突,通常但不总是涉及军事力量的积极参与。
Organized, large-scale, armed conflict between countries or between national, ethnic, or other sizeable groups, usually but not always involving active engagement of military forces.
对敌发动武装冲突
the waging of armed conflict against an enemy
这种特定的冲突。
A particular conflict of this kind.
战争状态(宣战开始,正式结束,适用国际战争规则)
a legal state created by a declaration of war and ended by official declaration during which the international rules of war apply
任何长期冲突,尤其是
Any protracted conflict, particularly
竞争实体之间的斗争
an active struggle between competing entities
一种纸牌游戏,所有牌在游戏开始时发出,玩家试图全部赢得,通常不涉及技巧,仅用于消磨时间。
Any of a family of card games where all cards are dealt at the beginning of play and players attempt to capture them all, typically involving no skill and only serving to kill time.
Many families fled the city when the war began.
战争开始时，许多家庭逃离了这座城市。
用法提示：war 为名词，意为‘战争’，在句中作主语。
AI contextual example
The two countries signed a peace treaty after years of war.
经过多年战争，两国签署了和平条约。
用法提示：war 为名词，表示‘战争状态’，用在 after years of 后作介词宾语。
AI contextual example
He wrote a book about the effects of war on ordinary people.
他写了一本关于战争对普通人影响的书。
用法提示：war 为名词，作 of 的宾语，指‘战争’这一概念。
AI contextual example
at war 表示处于交战状态,常与 with 连用说明交战对象。
The two countries have been at war for three years.
这两个国家已经交战三年了。
go to war 指开始打仗,后面可接 with 或 against。
The government decided to go to war against its neighbour.
政府决定对邻国开战。
declare war on 也可引申为对某种现象宣战、大力整治。
The country declared war on its neighbour last month.
该国上个月向邻国宣战。
war 作可数名词指具体的某场战争,常用 between 说明交战双方。
The novel describes a long war between the two kingdoms.
这部小说描写了两个王国之间的一场长期战争。
grammar · medium
易错句子The two countries declared a war on each other.
正确表达The two countries declared war on each other.
declare war 是固定搭配，表示“宣战”这一抽象行为时 war 不可数、不加冠词；加 a 会把它误解为一场具体的战争，搭配不成立。
grammar · medium
易错句子The two countries have been in war for three years.
正确表达The two countries have been at war for three years.
表示“处于交战状态”要用固定短语 be at war (with sb)，介词是 at 而不是 in；in war 不能表达这种持续的交战状态。
grammar · medium
易错句子Many people believe that the war is always wrong.
正确表达Many people believe that war is always wrong.
泛指“战争”这一抽象概念时用零冠词 war；加 the 会特指某一场已知的战争，与泛指整类现象的语义不符。
宣战
The country declared war on its neighbor.
该国对其邻国宣战。
开战
They went to war over the disputed territory.
他们因争议领土而开战。
内战
The civil war lasted for years.
内战持续了多年。
世界大战
World War II ended in 1945.
第二次世界大战于1945年结束。
战争罪行
The general was tried for war crimes.
将军因战争罪行受审。
冷战
口水战
The politicians engaged in a war of words over the new policy.
政客们就新政策展开了一场口水战。
冷战
The two superpowers were locked in a cold war for decades.
这两个超级大国陷入了长达数十年的冷战。
神经战
The negotiations turned into a war of nerves as neither side would give in.
谈判变成了一场神经战，双方都不肯让步。
战争是地狱。
The general said that war is hell.
将军说战争是地狱。
战争。战争从未改变。
In the Fallout series, the intro says 'War. War never changes.'
在《辐射》系列中，开场白说‘战争。战争从未改变。’
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Dictionary facts from AI_FALLBACK, DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.
The Cold War shaped global politics.
冷战塑造了全球政治。