我国有句老话叫：“吃饭七分饱，健康活到老”，现代科学研究表明，适当保持一些“饥饿感”，真的更有助于身体健康。图库版权图片，转载使用可能引发版权纠纷适当饿一点好处竟然这么多1调节血糖、血脂约翰霍普金斯大学马克·马特森（Mark ...

CANBERRA, July 12 (Xinhua) -- A new Australian-led study has uncovered how ancient lungfish adapted to life on land, offering key insights into vertebrate evolution.

When the best part of Christmas is playing Santa Claus and helping poor, elderly and lonely people. Take Away English talks ...