The shooting was the deadliest single attack on the media in recent U.S. history.

这起枪击事件是美国近代史上媒体机构遭受的最致命的一起单一性袭击事件。

In terms of numbers, it seems to be the most, perhaps the worst ever, in a single attack.

从死亡人数上看，这可能是有史以来最严重的一次袭击。

He called the order “the single biggest attack on climate action in U.S. history, period.”

他称该命令为“美国历史上对气候行动的最大攻击”。

In 1969, the WHO estimated that a single bioweapon attack in a medium-sized city could kill tens of thousands of people.

1969 年，世卫组织估计，在一个中等城市发生的一次生物武器袭击就能杀死数万人。

A single attack on July 3rd killed more than 44 people at a detention centre near Tripoli; each side blamed the other.

7月3日在的黎波里附近的一个拘留中心发生的一起袭击造成44人死亡；双方互相指责。

Seven peacekeepers have been killed and 17 others injured in the worst ever single attack on the international force in the Sudanese region of Darfur.

在苏丹达尔富尔，一支国际部队遭受最严重袭击，7名维和人员被杀，另外17人受伤。

" There were significant operational failings in almost every single attack that they have ever carried out in cyberspace, " says Mr Moore.

“他们在网络空间进行的几乎每一次攻击都存在重大操作失误，”摩尔先生说。

In a statement, the head of the Sierra Club said: " President Trump's sweeping order is the single biggest attack on climate action in U.S. history, period."

塞拉俱乐部负责人在一份声明中说：“特朗普总统的全面命令是美国历史上对气候行动的最大攻击。”

I am still looking at the sea dreamily when suddenly I’m like " Wait, am I 200 km from home without a single panic attack? " I am shocked.

我还在梦幻般地看着大海，突然我想“等等，我离家 200 公里没有一次惊恐发作吗？”我很震惊。

According to The Associated Press-FRONTLINE war crimes project, the reported death toll on an apartment building in the southeastern Ukrainian city of Dnipro makes it the deadliest single attack on Ukrainian civilians since before the summer.

根据美联社-前线的战争罪行项目，乌克兰东南部德尼普罗市公寓楼的死亡人数证明，这是自今年夏天以来针对乌克兰平民最致命的一次袭击。

And especially when it comes to this dance festival, a rave this weekend that Hamas attacked, there are reports here of at least 260 people killed there, which would be the deadliest single attack on civilians in Israel ever.

尤其是在这个周末被哈马斯袭击的狂欢舞蹈节上，有报道称，至少有260人命丧此地，这将是以色列有史以来最致命的一次针对平民的袭击。