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- Explanation: Why is peculiar galaxy Centaurus A so dusty? 说明： 为什么奇特的星系半人马座A会有这么多尘埃？
- Active galaxy Centaurus A is likely the result of a merger with a spiral galaxy some 100 million years ago. 活动星系半人马座A可能是1亿年前与一个旋涡星系合并而成。
- One xample lies at the center of Centaurus A, where an accretion disk fires a jet of particles 15,000 light-years into space. 有一个例子居于人马座A的中心的黑洞，在那里一个闪光的圆盘物正在增长还能一次喷射粒子15000光年进入宇宙太空。
- The image of Centaurus A digitally superposed near the top signifies one such active galaxy from which cosmic rays might originate. 在影像上方数字叠加上去的人马座A星系可能就是这样一个能产生宇宙射线活跃星系。
- Ultimately, debris from the ill-fated spiral galaxy should provide fuel for the supermassive black hole lurking at the center of Centaurus A. 最后，来自这个难逃噩运螺旋星系的碎片，将成为推动半人马座A核心超大质量黑洞的燃料。
- One example lies at the center of Centaurus A, where an accretion disk fires a jet of particles 15,000 light-years into space. 有一个例子居于人马座A的中心的黑洞，在那里一个闪光的圆盘物正在增长还能一次喷射粒子15000光年进入宇宙太空。
- A black hole, like theone in Centaurus A, is formed when a massive star collapses from itsown gravity. The pull of gravity is so strong that not even light canescape. 黑洞;像在半人马座A星系的这一个;是当一个质量大的恒星因为自己的引力而塌缩后形成.;此引力强大得连光线都无法逃逸
- Chandra observations of the Centaurus A galaxy, where the star formation rate is extremely high, suggest that a massive AGN outburst occurred about 10 million years ago. 根据钱卓望远镜的观测，在半人马座A星系有著非常快速的恒星生成率，这表示在1000万年前曾经有颗超大质量AGN爆发过。
- Spitzer's ability to see dust and also see through it allowed the telescope to peer into the center of Centaurus A and capture this galactic remnant as never before. 把这红外线下的半人马座A跟可见光下的半人马座A相比较下，可发现明显的分别。
- About 1,000 light-years across, the twisted cosmic dust cloud apparently shaped like a parallelogram is likely the result of a smaller spiral galaxy falling into the giant Centaurus A. 影像中这个扭曲的宇宙尘埃云，大小约有一千光年，外观很像一个平行四边形，它很可能是一个小星系掉进半人马座A后所形成的。
- Explanation: Peering deep inside Centaurus A, the closest active galaxy to Earth, the Spitzer Space Telescope's penetrating infrared cameras recorded this startling vista in February 2004. 说明: 在2004年2月，史匹哲太空望远镜用高穿透性的红外光相机，透视半人马座A这个离我们最近的活跃星系之内部，并记录了这幅令人惊讶的景象。
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- A bowl of hot chicken soup is good for you. 喝一碗热鸡汤对你有好处。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- A country must have the will to repel any invader. 一个国家得有决心击退任何入侵者。
- A fire was burning in the grate. 火在壁炉中燃烧着。
- They cleaved a path through the wilderness. 他们在荒原中开辟出一条路。
- They denounced him to the police as a criminal. 他们向警方告发他是罪犯。
- This place doesn't have a very savory reputation. 这个地方的名声可不太好。
