Without numbers, healthy human adults struggle to precisely distinguish and recall quantities as low as four.

没有数字，健康成年人能准确区分或回忆起的数量会降低至四。

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Many Kunqu performers recall the low points of the 1990s.

许多昆曲演员都记得九十年代的低谷。

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Also, you will recall that there was an increase in the production of oil, from the low of about 700 barrels per day to about 2.3 million barrels per day.

此外，你还会想到石油日产量会从大约700桶增加到230万桶。

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Each is signified by an icon and a light-up dot, although you'll need to recall which dot is which in low-light settings, as the icons themselves remain unlit.

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Both oil producers and miners recall painful lessons of previous decades when low prices were the norm.

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Justice Secretary Jack Straw told The World At One he thought that just 10% of voters being able to trigger a recall vote via a petition was "too low" a threshold.

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