unaccountable
[ˌʌnəˈkaʊntəbəl]
adj.
不负责任的;
无责任的;
不能理解的;
难以说明的;
例句:
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For some unaccountable reason, it struck me as extremely funny.
不知道为什么，我觉得这极其滑稽。
-
He had an unaccountable change of mind.
他莫名其妙地改变了主意。
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For some unaccountable reason, the letter never arrived.
不知何故，那封信始终未寄到。
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In some cases, the secret operations remained unaccountable.
来自NEWYORKER
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They were unaccountable because they had no direct-line authority.
来自NEWYORKER
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Big, unaccountable government is popular these days.
来自SA