The bear moved back toward the forest, before returning for another attack — the first time I felt panic.

这只熊向森林走去，然后又回来再次攻击——这是我第一次感到恐慌。

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Senior diplomats from India and Pakistan are to resume formal negotiations in Delhi on February 25th for the first time since that attack.

来自印度和巴基斯坦的高级外交官2月25号在新德里恢复正式谈判，这是袭击发生以来的第一次。

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While critics of the CA system have long feared that such an attack could be possible, this is the first time such an attack has been seen "in the wild".

尽管电子认证系统的批评者们已经长时间担心攻击的可能性，这还是第一次“在自然环境中”发生这种攻击。

youdao

So how would we go about solving this problem if I told you not only was there a maximum weight, but there was a maximum volume. Well, we want to go back and attack it exactly the way we attacked it the first time, which was write some mathematical formulas.

有些时候两个都重要,所以如果我告诉你这里不仅有,最大重量还有最大容量，我们应该怎么解决这个问题呢？,好了，我们想回过来然后,和第一次一样看看这个问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

It is thought to be the first time such an insider attack was carried out by a woman.

BBC: Policewoman who killed US aide in Kabul 'is Iranian'

The claim by February 14 that it carried out the blast cannot be independently verified but if confirmed the attack would mark the first time the group has said it was behind such an attack.

BBC: Car blast in Bahrain heightens F1 security concerns

Fortunately, had any of these missiles been launched as an attack on the United States or our allies, for the first time, the president could defend against such an attack by using an operational missile defense system.

CENTERFORSECURITYPOLICY: Missile defense funds need support