目的: 研究青春期女性性发育 、 骨发育与身高突增的关系.Objective : To study the relationship among sexual development, bone development and height spurt in adolescent females.睡觉时分泌的生长激素进一步加快生长突增速度.Growth spurts are accelerated during sleep as the...
Dozens of miles of railway track have been torn up.好几十英里的铁轨被毁坏了。Across the river the railway track ran up to the pithead.铁轨跨过这条河直达矿井口。The job needs someone with a good track record in investment.这项工作需要有良好投资业绩的人来担当。...
Then he scraped away the dirt, and exposed a pine shingle.接着他刨去泥土, 下面露出一块松木瓦块.They scraped off the barnacles that always encrusted on the ship's hull.他们刮去总是附在船身外面的甲壳动物.She scraped the mud off her boots.她刮掉了靴子上的泥。The...