单词：
单词： 相关文章
Running Shoes Jog Joints In a study in the Journal of Injury, Function and Rehabilitation, researchers found that running shoes protected the feet, but at the expense of hips, knees and ankles. Molly Webster reports Your feet may love running shoes.
60秒科学
Various stages of cartilage growth on scaffold. The final image on the right shows naturally forming cartilage for comparison. These replacement joints can be made of combinations of metal alloys, plastic and ceramic, but new research shows that it m
VOA标准英语2010年(八)月
Osteoporosis Drug Might Repair Joints Damaged by Arthritis A medication that builds bone mass in patients with osteoporosis might actually help repair damaged joints and could be used to treat people suffering from arthritis, according to University
VOA标准英语2011年(九月)
AILSA CHANG, HOST: When you get up in the morning, do you hear a snap, crackle, pop? We're not talking about cereal here. We are talking about your knees. Well, if you reach for the painkiller before that cup of coffee, you are in good company. There
2017年NPR美国国家公共电台8月
外边太冷咯！ 大家都应该呆在家里，看看最棒的 OMG美语 节目！ 1) so cold 这么冷 2) freezing my butt off 冷极了,屁股冻僵了 3) chilly 冷 4) I can't feel my fingers 我感觉不到我的手指了 5) nippy 有点冷 6)
OMG美语
同学们都要开始上课，对不对！？ 所以我们今天一起来看看怎么用美语谈各种school的话题！ 1) buckle down 玩命突击 2) study my butt off 玩命学习 3) focus 集中精力
OMG美语