careless/absent-minded/heedless/reckless.导航词义：粗心的

1. careless:adj. 粗心的，疏忽的.指在做某事时精力不集中的，因而造成错误、损失等。

A careless driver is a killer.

一个粗心大意的司机就是一个杀手。

He is careless about his work.

他对工作很马虎。

2. absent-minded:adj. 心不在焉的.指某人经常丢三落四的，也许因为精力不集中，也许是由健忘症引起的。

The absent-minded professor is always losing his books.

这位健忘的教授老是丢书。

She had an absent-minded look on her face.

她脸上露出心不在焉的神色。

3. heedless:adj. 不注意的，不留心的.指对某事掉以轻心，或茫然地陷入沉思且未注意到周围的情况或活动的，通常作表语，常后接介词 of。

He rode on, heedless of danger.

他不理会危险，继续骑马前行。

She is heedless of the noises outside the window.

她没有注意到窗外的嘈杂声。

4. reckless:adj. 鲁莽的，大意的.指行事鲁莽、不计后果的，作表语时常可与 heedless 换用。

a reckless teenager

一位毛手毛脚的少年

be reckless of consequences

不顾后果

He is a reckless driver.

他是个鲁莽的司机。

He is reckless/heedless of danger.

他不顾危险。

全部

1·She had been inexcusably careless.

她曾粗心大意得不可原谅。《柯林斯英汉双解大词典》

2·It's your own fault for being careless.

你粗心大意是你自己的过失。《牛津词典》

3·It was careless of me to leave the door open.

怪我粗心忘了关门。《牛津词典》

4·It only takes one careless driver to cause an accident.

只要有一个粗心大意的驾驶员便会发生车祸。《牛津词典》

5·Careless drivers hazard other people's lives as well as their own.

粗心大意的驾驶者拿他人和自己的生命冒险。《牛津词典》

6·I was known for being careless.

我粗心大意是出了名的。

7·The girl was kindhearted but careless.

那女孩心地善良，但比较粗心。

8·Why was Jamila thought a careless girl?

为什么杰米拉会被认为是一个粗心大意的女孩？

9·They are dangerous only if programmers are careless.

只有当程序员粗心大意时，它们才是危险的。

10·Tom is a little careless, but he is otherwise quite suitable for the post.

汤姆有点粗心，但在其他方面他很适合这个职位。

粗心

1·Tom is a little careless, but he is otherwise quite suitable for the post.

汤姆有点粗心，但在其他方面他很适合这个职位。

2·The character was obviously wrong but he didn't pick it out. It shows how careless he was.

字明显错了，但他都没把它挑出来。可见他有多粗心。

3·If you have time left, go over everything to make sure you haven't made any careless mistakes.

如果你还有时间，就把所有的东西都检查一遍，确保你没有犯任何粗心的错误。

4·She is a bit careless and lazy about her school work, but a bright little thing and very popular with her age group.

她在学习上有点粗心和懒惰，但她很聪明，在同龄人中很受欢迎。

5·On the basis of the police report, the Lummis accident committee correctly determined that Mclaughlin had been quite careless.

根据警方的报告，卢米斯事故委员会正确地判定了麦克劳林相当粗心。

粗心大意

1·It only takes one careless driver to cause an accident.

只要有一个粗心大意的驾驶员便会发生车祸。《牛津词典》

2·Why was Jamila thought a careless girl?

为什么杰米拉会被认为是一个粗心大意的女孩？

3·Children can be careless about things like that, and he won't make a big fuss about it unless it becomes a regular thing.

孩子们在这种事情上可能会粗心大意，但除非这成为常态，否则他不会大惊小怪。

4·On March 13th, while on duty Charles McLaughlin, a very careless driver employed by the company Lummis was involved in another accident.

在3月13日，拉米斯公司雇佣的一位非常粗心大意的叫做查尔斯·麦克劳林的司机在当值时又卷入了另一起事故。

5·Careless drivers hazard other people's lives as well as their own.

粗心大意的驾驶者拿他人和自己的生命冒险。《牛津词典》

不小心

1·The window pane shattered by a baseball, a lamp knocked over by a careless child, or a plate dropped in the kitchen are already broken.The flowers are already dead.

那些曾经被孩子们的棒球砸坏的窗户、不小心碰倒的台灯以及在厨房里掉在地上摔碎的碟子都是已经毁坏了的东西。

2·It clearly tells us that in the domain of transportation, there are hidden dangers everywhere should we become careless.

该图显然在告诉我们在交通领域，我们一旦不小心就会有许多潜在的危险。

3·In the practice we can know whether your child is careless or not understand the question during answer the question.

在实践中我们可以知道您的孩子不小心或不明白在回答这个问题。

4·How could you be so careless?

你为什么那么不小心呢？

5·On one occasion, raining, she Beetle driving, careless brush of my car.

有一次，下着雨，她开着甲克虫，不小心擦了阿三的车。

大意

1·I was so careless with my things. This is a warning to me to be more careful in the future.

我对待一切太大意了，这次给我一个警告，叫我以后要小心。

2·Arguably, onedownside of the virtual mess is that, by being less visible, it increases the likelihood of being careless, say, with laptops containing personal data.

言之成理的是，虚拟世界里的杂乱会带来一样坏处：由于直观性较差，它会增加疏忽大意的可能性。 比如说，在使用存有个人资料的笔记本电脑，就容易发生这种事。

3·It suggests an overestimation of Congress's strength, and the party's failure to reassure the TC's irascible leader, Mamata Banerjee, is careless at best.

或许这高估了国大党的能力，而国大党没能安抚tc暴躁的领导人Mamata Banerjee顶多只是大意。

4·And the rude and careless cashier at the supermarket.

还有超市里粗鲁又大意的收银员。

5·Due to his careless driving, we had a bad accident.

由于他的大意驾驶，我们出了车祸。

马虎

1·Proofread Two More Times: Careless spelling or grammatical errors, awkward language, or fuzzy logic will make your essay memorable-in a bad way.

再读两遍：马虎留下的拼写错误，语法错误，怪异的语言，或者模糊不清的逻辑只会让你的文章给人留下不良的印象。

2·Don't be hasty; it's better to take your time than to make a careless mistake.

不要草率行事；和马虎犯错相比，多花点时间好得多。

3·A (careless) driver is a danger to us all.

马虎的司机对我们每个人都是一个威胁。

4·He's very careless in his business, and now his company is in trouble - he's never been able to see beyond the end of his nose.

他做生意非常马虎，现在他的公司处境困难，他从来不作深思熟虑，因而无法把事情办好。

5·The team leader emphasized time and again to me that the reception should be done well because it was very important and I should never be careless.

队长一而再，再而三地向我强调，一定要把这次接待工作搞好，事关重大，千万不得马虎；

不慎

1·Careless use of the clutch may damage the gears.

离合器使用不慎可能会损坏传动装置。《牛津词典》

2·Beans may be incomplete job CARDS to, or careless handling in the processing, resulting in defective coffee beans.

残缺豆可能是作业时卡到，或是搬运中处理不慎，造成咖啡豆的残缺。

3·It's not vibrators, per se, that cause UTIs, but rather careless use.

导致尿路感染的不是振动棒，而是你的使用不慎。

4·In the oxygen making, any careless use will cause explosion of the air separation equipment, whose consequence is extremely serious, either suffering injury or personnel casualty.

制氧行业中，空气分离设备在使用中稍有不慎便会引发爆炸事故，其后果是十分严重的，轻则设备受损，重则人员伤亡。

5·In the past time, there are a lot of defects including the careless quotation of documents in the study of ancient Chinese consonant clusters.

本文检讨了以往研究上古汉语复声母的不足之处，以及使用文献材料的不慎情况。

无忧无虑的

1·I tried to tell myself that I'm young, that this is the time to be casual, careless, lighthearted and fun; don't ruin it.

我试着劝说自己我还年轻，在这个年龄应该率性而为，无忧无虑，开心而又愉快的生活；不要浪费了美好的青春时光。

2·Thee sitting careless on a granary floor.

你无忧无虑地坐在打麦场上。

3·He is always very much contented; he is a careless youth.

他总是很满足，是个无忧无虑的青年。

4·This summer, there's a group of light-hearted and careless children enjoy their long-expected summer holiday at Redtory.

夏日的红专厂里，一群蹦着跳着、无忧无虑的孩子正在享受着盼望已久的暑假。

5·The sun was shining, and he felt light-hearted and careless.

阳光灿灿，他觉得轻松愉快，无忧无虑。

粗枝大叶

1·Don't be so careless.

不要那么粗枝大叶。

2·I thought shame to be so careless.

我因为这样粗枝大叶而感到惭愧。

3·Henry may be a little careless in his work, but his loyalty to the company is beyond question.

亨利工作上可能有点粗枝大叶，但他对公司的耿耿忠心却是无可置疑的。

4·He made a careless mistake.

他犯了一个粗枝大叶的错误。

(1)careless of不顾；不关心；不在乎；不感兴趣；无忧无虑

(1)careless driving不小心驾驶；粗心驾车

(1)careless mistake粗心错误，疏忽

(1)careless about对…粗心