It was very thoughtless of me , I shall have written you a letter.

It was very thoughtless of you to do so.

你这麽做真是非常轻率.

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Moreover, a thoughtless act or remark can spoil a perfect relationship.

此外, 欠缺考虑的行动或言论也可能会破坏完美的关系.

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It was thoughtless of you to eat all the cake and leave none for me.

你把蛋糕都吃了,一点也不留给我,这太自私了.

《简明英汉词典》

I wonder why you are so thoughtless of others.

我很奇怪,你为何如此不替别人着想.

《简明英汉词典》

Thoughtless speeches may work great mischief.

不加考虑的言论可能严重时危害人心.

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This is because there are many careless and thoughtless people.

这是因为有许多粗心大意之人.

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...a small minority of thoughtless and inconsiderate people...

一小群只顾自己、不顾别人的人

柯林斯高阶英语词典

Adolescents are prone to make decisions and to act thoughtlessly, without anticipating possible consequences.

青春期少年在做出决定和采取行动时往往有欠考虑, 不会预见可能发生的后果.

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To chatter thoughtlessly or at length.

缺少考虑地或冗长地说话.

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We can no longer thoughtlessly use the many resources provided by nature.

我们已不能再不假思索地使用大自然所赐予我们的资源了.

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It is also a very serious matter when someone-deliberately or thoughtlessly-pollutes our water supplies.

人污染水源,是蓄意也好,无心也罢,后果都会非常严重.

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He stared thoughtlessly at the picture.

他漫无目的地盯着照片.

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A principle is involved, a life-and-death principle which is repeatedly and thoughtlessly violated.

这牵涉到一条原则, 一条一再被无情地违犯的生死攸关的原则.

辞典例句

The plumbline generation has already consolidated itself and has thoughtlessly killed the ideal of the impossible.

垂直线世代的人已经巩固了他们的地位,并草率地谋杀了不可能的概念.

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He treated his parents thoughtlessly.

他非常不关心他的父母.

《简明英汉词典》

The principle is repeatedly and thoughtlessly violated.

这条原则被一再无情地违犯着.

辞典例句

I had no idea that I was saying something that was painful. Please forgive my thoughtlessness.

我不知道我说的话会那么令你痛苦. 请原谅我的疏忽.

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This poison is a thousand-fold more toxic.

这种毒药毒性非常大.

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Because they have been defeated, the energy of their resistance has increased aa thousandfold.

因为他们已经被打败, 他们反抗的力量会增大千百倍.

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I have an ambition, I would like to have a thousandth of the company's shares.

我有一个野心, 我想拥有这家公司千分之一的股份.

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