Poor nutrition during pregnancy may make the unborn child more likely to have tooth decay later in life.

在怀孕过程中的营养缺乏也许会使未出生的孩子在今后的生活中更容易出现蛀牙。

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Radioactive iodine in food is of immediate concern, but it has a relatively short half-life and will naturally decay over a short time frame.

食品中的放射性碘直接引起人们的关注，但是它的半衰期相对较短并将在短时间内自然衰变。

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So many things in life do decay.

生活中的许多事情都会褪色。

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In fact, he argues, decay is life and life is decay.

ECONOMIST: Dust and decay

Poles who back the Kaczynski approach have similar complaints: they find the world deaf to their concerns about moral decay, lingering secret-police influence in public life, corruption and kowtows to Moscow.

ECONOMIST: Why do some east European leaders court bad publicity?

Its half-life the time taken for half the radioactive atoms in a sample to decay is 109 minutes, compared with two minutes for oxygen-15, ten minutes for nitrogen-13 and 20 minutes for carbon-11.

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