Learner's definition of ILL
1
a : not well or healthy : sick or unhealthy有病的；不健康的；不舒服的 —
usually used after a verb通常用在动词后 -
I felt ill [=sick] all afternoon.整个下午我都觉得不舒服。
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What's wrong? You look ill.怎么了？你气色不好。
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He had been ill for several years.当时他已经病了好几年。
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More than half of those exposed to the virus eventually become ill.一半以上接触过此病毒的人最终都得病了。
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She suddenly fell ill. = She was suddenly taken ill. = (US) She suddenly took ill.她突然生病了。
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(US) The sight made her physically ill. [=the sight made her nauseated]那个情景让她作呕。
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(US) He became violently ill. [=he vomited]他呕吐了。
◊ The comparative form iller and the superlative form illest are sometimes used for this sense.此义项的比较级和最高级有时用iller和illest。
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I have never seen him looking iller. [=worse, (US) sicker]我从未见过他这样满脸病容。
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That's the illest [=worst, (US) sickest] I have ever seen him.那是我见过的他最面容憔悴的一次。
b of health : not normal or good（健康状况）不正常的，不佳的 2
always used before a noun : harmful or damaging有害的；有破坏性的 3
always used before a noun : not helpful or lucky不利的；不吉利的 ◊ The saying it's an ill wind that blows no good or it's an ill wind that blows nobody (any) good means that something that is bad in most ways is usually also good in some way.没有绝对的坏事
4
always used before a noun : not kind or friendly不友善的；不友好的 -
an angry customer's ill humor/temper愤怒的顾客的坏心情/暴脾气
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We harbor no ill intentions toward them.我们对他们没有恶意。
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Her comment caused some ill feeling/feelings. [=feelings of anger or resentment]她的意见引起了一些愤怒的情绪。
— see also ill will 2 ill /ˈɪl/ adverb
Learner's definition of ILL
1
: in a bad or imperfect way : badly, poorly坏；恶劣地 —
often hyphenated常带连字符 -
He is ill-equipped [=he does not have the experience or preparation that is needed] to handle so much responsibility.他无力承担这么多责任。
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They were ill-prepared for the cold weather.寒冷天气让他们猝不及防。
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Her arrival was ill-timed. [=she arrived at a bad time]她到得不是时候。
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a pet ill-suited for travel [=a pet that is difficult to take with you when you travel]不适合带去旅行的宠物
2
: in an unfavorable or unkind way不友善地；不友好地；不利地 — see also bode ill at bode
ill afford
◊ If you can ill afford something, you should not do it or get it because it will cause problems.承受不起；负担不起
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We can ill afford more bad publicity.我们经受不起更多的负面宣传。
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She bought a new car, which she could ill afford.她买了辆新车，却又负担不起。
3 ill /ˈɪl/ noun
plural ills
plural ills
Learner's definition of ILL
1
[noncount] : bad or unlucky things坏事；不幸；祸害 -
She does not wish ill on/upon anyone. = She does not wish anyone ill.她不希望祸事降临在任何人身上。
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After the war, the country was changed, for good and for ill. [=in good ways and in bad ways]战后，这个国家发生了变化，有好有坏。
2
a [count] : a sickness or disease病；疾病 —
usually plural通常用复数 b ills [plural] : troubles or problems麻烦；问题