at one stroke meaning in English

一笔，一举

Three invading battleships were sunk at one stroke ..
三艘入侵军舰被一举击沉。
Let 's settle the matter at one stroke , not piecemeal .
把这事一气儿解决了吧，别零敲碎打了。
At one stroke he swept from linguistics all the apparatus of introspectionist psychology .
他一举扫除了语言学中所有内省心理学内容的影响。
Was it not a bitter blow for the innocent girl to think that at one stroke she should lose all the love which she cared for in the world ?
这纯洁的女孩子，眼看她在世上所珍惜的全部的爱，顷刻之间便化为泡影，怎能不感到这是一个沉重的打击呢？
The smoke choked the joking stroker at one stroke
烟一下呛住了开玩笑的抚摩者

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