Photons have no mass – they are weightless.
光子没有质量——它们是没有重量的。
Her death was the occasion of mass riots.
她的逝世引发了大规模的骚乱。
I began sifting through the mass of evidence.
我开始认真筛选大量的证据。
Their latest product is aimed at the mass market.
他们的最新产品瞄准了大众市场。
From this you can calculate the total mass in the Galaxy.
据此，你可以计算出银河系的总质量。
They now have access to the mass markets of China, Japan and the U.K.
他们现在有通路进入中国、日本和英国的大众市场了。
The size of the nebula at this stage is inversely proportional to its mass.
这个阶段的星云大小与其质量成反比。
Astronomers know that Pluto and Triton have nearly the same size, mass, and density.
天文学家们知道冥王星和海王卫一拥有几乎相同的体积、质量和密度。
The mass media tends to personalize politics.
大众传媒往往把政治个人化。
What can be done about mass unemployment?
如何应对大规模失业问题呢？
This can cause a kind of mass feeding frenzy.
这可能会导致一种大规模的疯狂进食。
It utilizes space, mass, texture, line, light, and color.
它利用了空间、质量、纹理、线条、光线和颜色。
There are no signs, yet, of any mass celebration.
目前还没有任何大规模庆祝活动的迹象。
The time appointed for the mass meeting was 9 a.m.
群众大会上午9点届时召开。
When they mass strand—it's complete panic and chaos.
当（动物们）聚集在一起的时候，情况就会变得非常恐慌和混乱。
The language of the article will have to be toned down for the mass-market.
这篇文章的措辞必须缓和一下以适合大众市场。
The UK, uniquely, has not had to face the problem of mass unemployment.
唯有英国无须面对大量失业的问题。
Shortly after the workers went on strike, police began to mass at the shipyard.
工人罢工后不久，警察开始在造船厂集结。
It was a time of mass unemployment.
当时有大批人失业。
There was mass hysteria when the band came on stage.
乐队登台时观众一片疯狂。
All the lights went off, and mass hysteria broke out.
所有的灯都熄灭了，大家变得歇斯底里起来了。
After the crash the car was a mass of twisted metal.
那辆车撞成了一堆扭曲的废铁。
Pope John Paul celebrated mass today in a city in central Poland.
约翰·保罗教皇今天在位于波兰中心的一个城市主持了弥撒。
They thought the arrival of television would deal a death blow to mass cinema audiences.
他们认为电视的问世将使观众涌向影院的现象不复存在。
They threatened to lead a mass walk-out if the party did not sharply change direction.
他们威胁说，如果该党对其发展方向不作大的调整，他们就发动大家集体退党。
She had a mass of auburn hair.
她有一头浓密的棕发。
他浑身伤痛。
她满头鬈发。
Her hair was a mass of tangles.
她的头发乱糟糟的。
Her arm was a mass of bruises.
她的胳膊上伤痕累累。
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