The frequent contact stimulates their leg hairs, triggering the release of a hormone that causes them to actively cluster even closer.

频繁的接触刺激了它们的腿毛，触发了一种激素的释放，使它们更积极地聚集在一起。

" Recent events in Russia and Ukraine have served as grisly reminders that we all remain just a hair trigger away from incinerating ourselves in a nuclear holocaust."

“最近在俄罗斯和乌克兰发生的事件可怕地提醒我们，我们所有人离在核浩劫中毁灭自己只有一触即发的距离。”

And you have nations pointing them at each other with a hair trigger and that this is inevitably going to at some point in time lead to more nuclear weapons use and it'll be even worse.

各国都在用核武器互相瞄准，一触即发，这不可避免地会在某个时间点导致核武器使用增加，让情况变得更糟。

But Gerald was " loud-mouthed and bullheaded, " as his mother fondly phrased it, hair trigger of temper, quick with his fists and possessed of a chip on his shoulder so large as to be almost visible to the naked eye.

可杰拉尔德像他母亲钟爱地形容的那样，是个" 高嗓门，笨脑袋" ，嬷嬷暴躁，动辄使拳头，并且盛气凌人，叫人见人怕。