目的探讨老年人心脏瓣膜钙化的病因.Objective To discuss the etiology of cardiac valve calcification in elderly.绒毛膜转移癌治愈后可以在病变部位看到钙化的痕迹.Calcification has been noted at the site of successfully treated metastatic choriocarcinoma.心脏学家已经意识到了C...
骆驼是载重的牲畜.The camel is a beast of burden.SUV被设计为具有很大的引擎,因为他们天生就是用来载重的.SUVs are designed with large engine because they are meant to carry heavy loads....
从电视画面上看,许多木质房屋漂浮在水上.居民们从漂浮在水面上的残存物中寻找着他们的物品.Television pictures showed wooden homes flattened and residents searching through water - soaked debris for their belongings....