UK issues new junk food ad ban to lower childhood obesity 英国出台新规定限制垃圾 ...
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...
70 kids general knowledge quiz questions to test your little ones
We’ve created a quiz for kids full of general knowledge, geography, animal and music questions for you to test them. We’ve ...
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二、用一分钟阅读下列问题，然后听第二遍音频并回答问题：
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient world slept only 6.5 hours a night.