MEANING/意义
无效
EXAMPLES/列句
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司机因抢救无效而死亡。The driver died because of ineffective rescue measures.
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那是因为他们厌恶真主所降示的经典,故他将使他们的善功无效。(from the Quran) That is because they hate the Revelation of Allah; so He has made their deeds fruitless.
COMBINATIONS/组合
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无效的invalid
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宣布无效declare sth invalid/void
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涂改无效be invalid if altered