"We see an increasing number of children with fetal alcohol spectrum disorders from middle and higher socio-economic groups coming to our private practice," he says.

“我们发现，来私人诊所就诊的胎儿酒精谱系障碍儿童中，来自中、上社会经济群体的数量正在上升，”他说。

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The specific epidemiological observations considered included milder disease across a broader age spectrum and a growing number of clusters of cases, closely related in time and place.

考虑的具体流行病学观察包括与时间和地点紧密相关的包括更大年龄跨度的轻型病症和逐渐增多的群组病例。

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According to Spectrum magazine, Europe has the world's biggest number of robots, an average of 50 per 10, 000 workers, primarily in the car industry, and in foundries and chemical plants.

《Spectrum》杂志数据显示，欧洲队机器人数量具世界首位，平均每1000名工人中就有50个机器人，并主要集中在汽车产业、铸造产业和化学工厂。

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For most of this century, the limitations of spectrum have restricted the number of television and radio channels.

ECONOMIST: A world view | The

Given the number of kids on the autism spectrum, it is still questionable whether O'Dell's methods can be captured, encoded and distributed.

FORBES: New Hope For Autism

It does this by licensing temporary monopolies over parts of the radio spectrum while ensuring that a number of networks compete in this market.

ECONOMIST: Letters