For some unaccountable reason, the letter never arrived.
不知何故，那封信始终未寄到。
Too many government departments are unaccountable to the general public.
有太多的政府部门不对社会大众负责。
1.无法解释的;莫名其妙的
2.没有责任的,不负责的 (for)
1.people or organizations that are unaccountable do not have to explain their actions or decisions to anyone else. This word shows that you do not approve of people or organizations like this
2.difficult or impossible to explain or understand
1.as it may be to criticise those who set out to do good, many charities behave as if they were unaccountable.
许多的慈善机构表现得很不负责，虽然我们这样责备这些从事善行的人可能显得不礼貌。
2.Churlish as it may be to criticise those who set out to2 do good, many charities behave as if they were unaccountable.
也许去批评那些一心想做点好事的人是很无礼的，但是许多慈善团体表现地似乎一点责任感都没有。
3.Brown whipped out a large pair of scissors, and fell into an unaccountable state of excitement.
善良的布朗太太猛然抽出一把大剪刀，兴奋得令人难以解释。
4.She instantly felt that she was the greatest simpleton in the world, the most unaccountable and absurd!
她当即感到她是世界上最大的笨蛋，真是荒唐至极，不可思议。
5.The unaccountable depression that possessed Philpot deprived him of all his usual jocularity and filled him with melancholy thoughts.
一种难以形容的沮丧心情使菲尔波特失去了平时那种诙谐乐观的性格，他心中愁绪万端。
6.An unaccountable SPLM would be perfectly happy to get through to its own referendum in 2011 without elections.
一个不用对谁负责的苏丹人民解放运动将非常乐于进入2011年它自己的全民投票而不进行选举。
7.But the question is whether party groupings, unaccountable and out of sight, should be directly controlling government budgets.
但问题在于，无法问责的、也看不见的党内派系是否应直接控制政府预算。
8.The perception that Europe's legislative machinery is remote and unaccountable is widespread even in countries that like the EU.
认为欧洲的立法机构遥不可及与莫名其妙的看法，即使在那些喜爱欧盟的国家也广为流传。
9.An organisation exempt from either of these disciplines represents an unaccountable concentration of power.
一个组织若不受这两种规则限制，便代表了不负责任的权力集中。
10.huge amounts of unaccountable money may face up to 10 years' jail under new penalties being studied by Chinese law makers.
中国法律制定者在研究制定新刑法（刑法修正案）决定如国家工作人员拥有巨额财产来源不明的将面临高达十年刑期。