A couple of years ago film-maker David Bond realized that his children, then aged five and three, were attached to screens to the point where he was able to say "chocolate" into his three-year-old son's ear without getting a response.
几年前，电影制作人大卫·邦德意识到他的两个孩子（当时分别是5岁和3岁）都离不开屏幕，以至于他对着3岁的儿子的耳朵说“巧克力”都没有回应。
With 3,400 kindergartens across the country, the pre-school provides physical, mental, moral and aesthetic education to children aged between 3 to 6 years old.
整个国家拥有3400个幼儿园，学龄前教育向3至6岁的孩子教授物理，智力，道德和审美教育。
Objective: to study the prevalence of sleep disorder and the effective factors of sleep disorder for children aged 0 ~ 5 years old in Chongqing.
目的：了解重庆市0 ~ 5儿童睡眠状况及睡眠障碍发生情况，分析影响儿童睡眠的常见因素。
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