The little boy is herding the cattle.这个小男孩在放牛.They have been herding cattle on the tableland for generations.他们世世代代在这高原上放牧。The girls usually got rough and mannish after they went to herding.到野外去放牧的姑娘通常都变得粗里粗气,象个男子汉....
Restenosis was observed in 2 patients after percutaneous transluminal angioplasty treatment.有2例只接受经皮血管腔内成型术治疗的患者发生术后再狭窄.Restenosis is a major complication after percutaneous transluminal coronary intervention.冠脉再狭窄是冠状动脉介...