“无用”常见的英文表达有 useless、futile、in vain(短语形式) 、ineffectual 等,具体使用需结合语境:
含义:最常用的表达,指完全不起作用、没有价值或没有用处的。
例句:
This old computer is useless now; it can't even run the simplest programs.(这台旧电脑现在没用了,连最简单的程序都运行不了。)
All my efforts to fix the car were useless.(我修车的所有努力都白费了。)
含义:侧重于表示努力、尝试或行为是徒劳的、无结果的,通常带有一种无奈的情感。
例句:
It was futile to argue with him; he never changed his mind.(和他争论是徒劳的,他从不改变主意。)
They made futile attempts to rescue the trapped miners.(他们营救被困矿工的努力是徒劳的。)
含义:这是一个短语,意思是“徒劳地、白白地”,常用来描述做了某事但没有达到预期结果。
例句:
He searched for his lost keys in vain.(他徒劳地寻找丢失的钥匙。)
We waited for hours, but our efforts were in vain.(我们等了好几个小时,但我们的努力都白费了。)
含义:指没有效果的、不起作用的,常用来形容人、计划或行动缺乏效力。
例句:
His ineffectual leadership led to the failure of the project.(他无效的领导导致了项目的失败。)
The ineffectual measures taken by the government did little to solve the problem.(政府采取的无用措施对解决问题几乎没有起到任何作用。)