应钟是古代乐律名。古乐分十二律﹐阴阳各六。古人以十二律与十二月相配，每月以一律应之。应钟与十月相应。
5-17岁儿童青少年应每天累计至少60分钟中等到高强度身体活动；
Children and youth aged 5–17 should accumulate at least 60 minutes of moderate- to vigorous-intensity physical activity daily.
网站的设计确实是非常精美，而更重要的是其运作方式：用户被限定用一分钟的时间阐述自己的观点，社区的用户可以投票，也可以通过自己的一分钟视频予以回 应。
The design is stunning, but more importantly the format works - you're limited to 1 minute to make your point and the community can vote and respond with their own 1-minute videos.
凭经验估计，每磅鸡肉应烹调20分钟。
As a rule of thumb, you should cook a chicken for 20 minutes for each pound that it weighs.
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