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an impregnable castle是什么意思？

an impregnable castle

攻不破的堡垒

相关词汇
an impregnable castle

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；
例句
He started eating an apple...
他开始吃苹果。

impregnable

adj. 攻不破的，坚不可摧的，无可辩驳，毫不动摇；
例句
In those impregnable mountains, the guerrillas could hold out for years.
在那些易守难攻的大山里，游击队可以坚持很多年。

castle

n. 城堡，堡垒，象棋中的车；vt. 把…置于城堡中，（下国际象棋时）用车护（王）；
例句
Leeds Castle will provide a dramatic backdrop to a fireworks display next Saturday...
利兹堡将为下周六的烟花燃放提供美妙的背景衬托。
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
a tenable theory
站得住脚的理论
I think we're onto something big.
我想我们正在干一番大事业。
We posted a guard to keep watch.
我们派了一名卫兵站岗。
We soon see a field of wheat undulate in the breeze.
我们很快看到一片在微风中起伏的麦田。
That jacket of yours has seen better days—isn’t it time you bought a new one?
你那件夹克衫可是有年头了—是不是该买件新的了？
He is keeping on the house in his hometown.
他把家乡的那栋房屋保留着。
countermanded the air strikes.
下令撤回空袭命令
She has been a faithful mate to him.
她一直是他忠实的配偶。
The factory has laid off workers because of the drop in sales.
那个工厂由于销量下降而暂时解雇了工人。
Owing to engine trouble,the plane had to make a forced landing.
由于发动机出了毛病,飞机不得不进行迫降。