1. ignore [ɪg'nɔː] vt. 无视，不理睬

to ignore insulting remarks

无视侮辱性的言论

You can't ignore the fact that many criminals never go to prison.

你不能无视很多罪犯从未获刑的事实。

I made a suggestion but they chose to ignore it.

我提了个建议，但他们不予理会。

2. ignorance ['ɪgn(ə)r(ə)ns] n. 不了解；无知，愚昧

in ignorance

He was kept in complete ignorance of the company's financial situation.

关于公司的财务状况，他一直蒙在鼓里。

I would have remained in ignorance if Sherry hadn't mentioned it.

要不是雪莉提起这件事，我还蒙在鼓里呢。

I felt embarrassed by my complete ignorance of world history.

我为自己对世界历史的一无所知感到尴尬。

ignorant ['ɪgn(ə)r(ə)nt] adj. 无知的；愚昧的

an ignorant and uneducated man

不学无术的人

Many young people are ignorant of recent history.

许多年轻人对近代历史一无所知。

3. neglect [nɪ'glekt] vt./n. 忽视，忽略，疏于(照料)

She has neglected her health.

她忽视了自己的健康。

They had neglected their children.

他们疏于照管他们的孩子。

neglect one's duty

渎职

neglect to do sth    

He neglected to go to the meeting.

他一时疏忽，忘记去开会。

Tenants are complaining about the landlord’s neglect of the property.

住户在抱怨房东疏忽了房屋的维修。

neglect of duty

渎职

negligible ['neglɪdʒɪb(ə)l] adj. 可以忽视的，无足轻重的

The damage to my car is negligible.

我车的损坏程度很轻微。

4. overlook [əʊvə'lʊk] vt. 俯视，俯瞰；忽略，忽视；不计较

Our room overlooks the ocean.

从我们的房间能眺望大海。

He read the paper several times but he still overlooked some printer's errors.

他把论文看了好几遍，但还是忽略了一些打印错误。

It is easy to overlook a small detail like that.

那样的小细节很容易被忽略。

I'll overlook your mistake this time.

这次我就不计较你的错误了。

词义辨析：

ignore: to deliberately pay no attention to something that you have been told or that you know about

指故意不理睬，故意置之不理、不考虑

e.g.: ignore one's advice/suggestion

neglect: to fail to look after someone or something properly

强调对自己的职责、义务、家庭等没有给予应有的重视

e.g.: neglect one's duty/children

overlook: to not notice something, or not realize how important it is

指由于匆忙、粗心大意而忽略，尤其监督检查方面的遗漏

e.g.: overlook a printer's error

5. regardless [rɪ'gɑːdlɪs] adv. 不管，不顾，无论如何

regardless of

All our proposals were rejected regardless of their merits.

我们所有的建议都遭到拒绝，不管价值如何。

The law requires equal treatment for all, regardless of race, religion, or sex.

法律规定人人平等，不分种族、宗教或性别。

carry on/go on regardless不管怎样都要继续下去

The weather was terrible but we carried on regardless.

天气非常恶劣，但我们并不理会，照常进行。