Kevin Church/ BBC News
The categories are broken into four sections: users under 13 years of age, over 13 years of age under 16, at least 16 years of age and under 18, and "at least 18 years of age."
，这一点在服务器推荐中也有详细论述
Non-gated content, of course.
学习的一些教材内容然后是习惯方面，可以按作息时间，，就算不困不想睡午觉，也能躺在床上不吵不闹。可以自己脱掉衣服，叠好衣服躺在床上，午休结束会叠好被子穿好衣服起床。