Keep an eye on your younger brother. It is easy to fall over when babies learn to walk.

注意你弟弟，小孩子学走路时容易摔倒。

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They "will take some time to fall over, but they are dead," says the professor emeritus.

他们“虽然还要一些时间倒下，但已经死了”，这位退休教授表示。

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What we did is we measured The Times for these ball bearings to fall over a distance of four centimeters.

我们测量了，这些滚珠下降，4 cm所用的时间。

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In warmer climates, snow is known to fall in areas over four thousand nine hundred meters above sea level.

VOA: special.2010.01.05

Six-month-olds don't, and even 12-month-olds don't find anything weird about this, while adults are sophisticated enough to understand that that's an unstable configuration and should fall over.

六个月大的婴儿则不会这么想,即使是十二个月大的婴儿,也没有发现这个木块存在的异常,只有经历世事的成年人才会理解,这不是个稳定的结构,而这个结构是会倒塌的

耶鲁公开课 - 心理学导论课程节选

I'm going to contrast that with the situation in Greece after the fall of the Mycenaean world, and I was going to say not just in the Mycenaean towns themselves, but over the entire Aegean Sea and indeed across the Mediterranean.

我将会把它与,迈锡尼文明陨落之后的希腊来做对比,我说的不仅是迈锡尼城镇本身,而是整个爱琴海,乃至整个地中海地区

耶鲁公开课 - 古希腊历史简介课程节选

From 06:00 GMT it became apparent it was going to fall over a wider area and the warnings were extended.

BBC: Snow in Bicester

This is the lowest that expectations for stocks to fall over the next six months have been in seven weeks.

FORBES: Bullish Sentiment Rebounds, Bearish Sentiment Falls

An eyewitness at the airport said the plane was travelling down the runway, when it appeared to "to fall over".

BBC: Landing gear collapse at Jersey Airport