The powdery dust rose in a cloud around him.一团粉尘在他周围扬起。A couple of inches of dry, powdery snow had fallen.下了数英寸厚的粉状干雪。a light fall of powdery snow细雪轻轻飘落...
Defects in hemostasis may be inherited or acquired.止血作用缺陷可能是先天性的、也可能是后天性的.To research about hemostasis method for great sephenous varicosis.目的:研究大隐静脉曲张止血的方法.Platelets have a major role in hemostasis.血小板在止血中起主要作用.From tra...
His proficiency as a surgeon is well known.他作为一名外科医生的水平是有名的.He made little proficiency in literary accomplishments.他在文学方面成就不多.Evidence of basic proficiency in English is part of the admission requirement.英语基本熟练是入学条件之一。...