她帮他翻了个身，免得他生褥疮。She turned him in the bed so that the sheets wouldn't chafe his skin into sores.目的寻找一种治疗褥疮的有效方法.To search an effective therapeutic method in treatment of bedsore.结论复方车前草软膏对褥疮有一定的治疗作用.Conclusion Compou...
In 1900 Frank Chapman , an ornithologist, suggested a count instead of a kill at Christmas time.1900年, 一位鸟类学家FrankChapman建议人们在圣诞节时观测鸟类而不去狩猎它们.[ Man On P . A . ] Ladies and gentlemen, Happy chapman.女士们先生们, 我是快乐查普曼.Chapman...