I took the gun, lifted it to my shoulder and sighted down the black barrel.
我拿起枪,举上肩,黑色枪筒向下瞄准。
Sixth version 1995-date Black or chrome lens with "50" on barrel and built in hood.
第六版1995 -现在,黑色或银色,镜筒上刻有“50”,内置遮光罩。
From the Earth we look down the barrel of jets from supermassive black holes, however these so-called "blazars" are at much safer distances of millions or billions of light years.
地球处于来自超大质量黑洞产生发射物的“枪口”方向,但是这些被叫做耀变体的天体处于一个对于我们来说非常安全的距离位置上,成万上亿光年。
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