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雀斑不过是高浓度的黑色素.用英语怎么说？

雀斑不过是高浓度的黑色素.

Freckles are simply concentrations of melanin.

相关词汇
freckles are simply concentrations of melanin

freckles

n. 雀斑，斑点( freckle的名词复数 )；
例句
...her freckles and unmanageable hair.
她的雀斑和乱糟糟的头发

are

vi. （用于第二人称单复数现在时，第一、三人称复数现在时）是；n. 公亩（等于100平方米）；
例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

simply

adv. 简单地，朴素地，（引出概括或解释）不过，仅仅，简直，<非正>实在；
例句
Many parents simply abdicate all responsibility for their children.
许多父母对孩子简直是完全撒手不管。

concentrations

n. 集中( concentration的名词复数 )，专心，关注，浓度；
例句
The area has one of the world's greatest concentrations of wildlife...
这个地区是世界上野生动物最为密集的区域之一。

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

melanin

n. 黑色素；
例句
The production of melanin in the skin is stimulated by exposure to the sun...
皮肤暴露在阳光下就很容易生成黑色素。
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
...an ardent opponent of the Vietnam War.
越南战争的强烈反对者
After Fe - Chelate fertilization rinse the leafs with water.
施完螯合铁肥后用清水漂洗叶子.
Both doctors and nurses have increasingly made a specialty of the care of the aged.
越来越多的医生和护士专门从事老年人的护理工作。
I've defrosted the freezer.
我已经给冷冻柜除过霜了。
The company needs to improve its training and retention of staff.
公司需要改进对员工的培训和留用工作。
There is every sign to show that the enemy will retreat.
种种迹象表明敌人要退却。
Her attitudes solidified through privilege and habit.
由于特权和习惯使然,她的看法变得越来越难以改变。
What is the total strength of the enemy army?
敌军人数总共有多少?
The Chinese people have been freed from imperialist oppression.
中国人民已经从帝国主义的压迫下解放出来了.
Politicians are often accused of mendacity.
政客们常被斥为扯谎成性。