新的折叠装置要求包括锁闭装置或其它防止物品意外或突然移动或倒塌的装置。

Folding mechanisms now include requirements for locking devices or other means to prevent unexpected or sudden movement or collapse of the article.

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火炉前的高背椅子突然移动了，像舞台的活动门里钻出一个哑剧中的小丑一样，安德鲁舅舅可怕的样子出现在他们面前。

The high-backed chair in front of the fire moved suddenly and there rose up out of it - like a pantomime demon coming up out of a trapdoor the alarming form of Uncle Andrew.

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但是抖动效果最显眼的，权势集团解释起来最难的要数月球的突然移动，这种现象最近由于地球抖动变得更加剧烈而受到关注。

But the wobble effect most noticed and hardest for the establishment to explain is the sudden movement of the Moon, which has recently come of note as the wobble has recently become more violent.

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