用防风雨的帆布背包装照相机和镜头。Use a weatherproof rucksack to carry your camera and lenses around in.她小心翼翼地在红帆布垫上坐下，膝盖矜持地并拢着。She sat down cautiously on the red canvas cushions, knees modestly together.主帆是用真正的厚篷帆布手工裁剪和缝纫而成的。The mainsai...
医生诊断出我的病是一种罕见的骨病.The doctor diagnosed my illness as a rare bone disease.目的: 了解西周早期骨病存在情况.Objective: Understand bone disease condition of early period of the West - Zhou dynasty.整形外科医生诊断出我的病是一种罕见的骨病.The plastic surgeon di...
镭可以用来治疗癌症.Radium can be used to treat cancer.氡是镭的子体.Radon is the daughter of radium.镭在离它的原始母体一定距离上固定下来.Radium can be fixed some distance from its original source....