In fact, their moods turned significantly darker than those of members of the control group, who weren't urged to think positive thoughts.
出自-2010年6月阅读原文
The man was tall, six foot, and he had dark hair, and he had moustache.
出自-2010年12月听力原文
Yes, yes, he had on a dark sweater, a solid color
出自-2010年12月听力原文
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ADJ-GRADED
黑暗的;昏暗的;天黑的
When it is dark, there is not enough light to see properly, for example because it is night.
例句
When she awoke it was evening and already dark...
她醒来时已是晚上，天已经黑了。
It was too dark inside to see much...
里面太暗，看不太清。
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N-SING
黑暗;昏暗;暗处
The dark is the lack of light in a place.
例句
Her mother was sitting in the dark by the stove in her rocking chair...
她母亲坐在炉边暗处的摇椅里。
I've always been afraid of the dark.
我一直很怕黑。
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ADJ-GRADED
黑色的;深色的;暗色的
If you describe something as dark, you mean that it is black in colour, or a shade that is close to black.
例句
He wore a dark suit and carried a black attaché case...
他身穿暗色西服，手提黑色公文包。
The heavy dark table is inlaid with lighter wood.
笨重的深色桌子上嵌有颜色较浅的木头。
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COMB in COLOUR
(颜色)深的，暗的
When you use dark to describe a colour, you are referring to a shade of that colour which is close to black, or seems to have some black in it.
例句
She was wearing a dark blue dress.
她穿着一件深蓝色的礼服。
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ADJ-GRADED
(头发、眼睛或肤色)棕色的，黑色的
If someone has dark hair, eyes, or skin, they have brown or black hair, eyes, or skin.
例句
He had dark, curly hair...
他有一头卷曲的黑发。
Leo went on, his dark eyes wide with pity and concern.
利奥接着说下去，他的黑眼睛瞪得大大的，充满怜悯和关切。
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ADJ-GRADED
(白人）有着棕色（或黑色）头发（且皮肤略带棕色）的，肤色深的
If you describe a white person as dark, you mean that they have brown or black hair, and often a brownish skin.
例句
Carol is a tall, dark, Latin type of woman...
卡萝尔身材高大，黑发棕肤，是个有着拉丁风情的女子。
The driver was very dark. Maltese, maybe.
司机一头乌发、肤色黝黑，可能是个马耳他人。
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ADJ-GRADED
(时期）黑暗的，恐怖的，悲惨的
A dark period of time is unpleasant or frightening.
例句
Once again there's talk of very dark days ahead...
又有传言说以后的日子会非常艰难。
This was the darkest period of the war.
这是那次战争中最黑暗的时期。
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ADJ-GRADED
(地方)神秘的，隐秘的
A dark place or area is mysterious and not fully known about.
例句
The spacecraft is set to throw new light on to a dark corner of the solar system.
这艘宇宙飞船可能会让人们对太阳系中的一个神秘角落有更新的认识。
...the dark recesses of the mind.
隐秘的思想深处
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ADJ-GRADED
(想法）忧郁的，悲观的
Dark thoughts are sad, and show that you are expecting something unpleasant to happen.
例句
Troy's chatter kept me from thinking dark thoughts.
特洛伊的喋喋不休让我暂时收起了阴郁思绪。
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ADJ-GRADED
(眼神或话语）阴险的，邪恶的，不祥的
Dark looks or remarks make you think that the person giving them wants to harm you or that something horrible is going to happen.
例句
Garin shot him a dark glance, as if in warning.
加林恶狠狠地瞪了他一眼，似乎是在警告。
...dark threats.
恶毒的威胁
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ADJ-GRADED
（指与严肃或令人不快的事物相关的)黑色的
If you describe something as dark, you mean that it is related to things that are serious or unpleasant, rather than light-hearted.
例句
Their dark humor never failed to astound him...
他们的黑色幽默总能让他咋舌。
Nina took a kind of dark pleasure in being the focus of the tension between her father and her brother.
对成了父亲和哥哥紧张关系的焦点，尼娜有点幸灾乐祸。
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PHRASE
天黑后
If you do something after dark, you do it when the sun has set and night has begun.
例句
They avoid going out alone after dark.
他们避免在天黑以后独自外出。
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PHRASE
天黑前
If you do something before dark, you do it before the sun sets and night begins.
例句
They'll be back well before dark.
他们会在天黑前早早返回。
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PHRASE
（对…）一无所知，毫不知情
If you are in the dark about something, you do not know anything about it.
例句
The investigators admit that they are completely in the dark about the killing...
调查人员承认他们对这起谋杀一无所知。
I managed to keep my parents in the dark about this...
我设法对父母瞒下了此事。
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PHRASE
瞎猜;盲干
If you describe something someone says or does as a shot in the dark or a stab in the dark, you mean they are guessing that what they say is correct or that what they do will be successful.
例句
Every single one of those inspired guesses had been shots in the dark.
所有那些凭直觉的猜测都是无根据的瞎猜。
Noun
1. absence of light or illumination
2. absence of moral or spiritual values;
"the powers of darkness"3. an unilluminated area;
"he moved off into the darkness"4. the time after sunset and before sunrise while it is dark outside
5. an unenlightened state;
"he was in the dark concerning their intentions""his lectures dispelled the darkness"Adjective
1. devoid or partially devoid of light or brightness; shadowed or black or somber-colored;
"sitting in a dark corner""a dark day""dark shadows""the theater is dark on Mondays""dark as the inside of a black cat"2. (used of color) having a dark hue;
"dark green""dark glasses""dark colors like wine red or navy blue"3. brunet (used of hair or skin or eyes);
"dark eyes"4. stemming from evil characteristics or forces; wicked or dishonorable;
"black deeds""a black lie""his black heart has concocted yet another black deed""Darth Vader of the dark side""a dark purpose""dark undercurrents of ethnic hostility""the scheme of some sinister intelligence bent on punishing him"-Thomas Hardy5. causing dejection;
"a blue day""the dark days of the war""a week of rainy depressing weather""a disconsolate winter landscape""the first dismal dispiriting days of November""a dark gloomy day""grim rainy weather"6. secret;
"keep it dark""the dark mysteries of Africa and the fabled wonders of the East"7. showing a brooding ill humor;
"a dark scowl""the proverbially dour New England Puritan""a glum, hopeless shrug""he sat in moody silence""a morose and unsociable manner""a saturnine, almost misanthropic young genius"- Bruce Bliven"a sour temper""a sullen crowd"8. lacking enlightenment or knowledge or culture;
"this benighted country""benighted ages of barbarism and superstition""the dark ages""a dark age in the history of education"9. marked by difficulty of style or expression;
"much that was dark is now quite clear to me""those who do not appreciate Kafka's work say his style is obscure"10. having skin rich in melanin pigments;
"National Association for the Advancement of Colored People""the dark races""dark-skinned peoples"11. not giving performances; closed;
"the theater is dark on Mondays"