Debra Ronca, a contributor to the How Stuff Works website, argues that some parents might be putting the cart before the horse in blaming close-up TV watching for their child's vision issues.

员工怎样工作网站供稿人黛布拉·荣卡提出说，在归咎近距离看电视与保护孩子视力之间，父母处于一个很尴尬的境地。

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A soccer robot system consists of four modules: cart subsystem, communication system, decision subsystem and vision subsystem.

足球机器人系统可分为四大模块：小车子系统、通讯子系统、决策子系统与视觉子系统。

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It is a sweeping vision, as all technologies are thus connected in some overall context, from a bullock cart to synthetic genes.

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