N acetylcysteine ( NAC ), a precursor of glutathione, is a thiol antioxidant.N-乙酰半胱氨酸 ( NAC ) 为谷胱甘肽的前体, 是一种含有巯基的抗氧化剂.Error is often the precursor of what is correct,but conceit is the prelude to a fall.错误往往是正确的先导,骄傲是跌跤的前...
Error is often the precursor of what is correct.错误常常是正确的先导.Real tennis, an ancient precursor of the modern game, originated in the eleventh century.室内网球，现代网球运动的古老前身，起源于11世纪。Error is often the precursor of what is correct...
Take a piece of sandpaper and round off the edges of the frame.拿张砂纸把框架的边磨圆.When assembling the pie, wet the edges where the two crusts join, to form a seal.在包馅饼时，先把两片馅饼皮边沿接头部分弄湿，再将其捏合。She evened the edges by trimming the...
Evidently no lessons have been learnt or else the government would not have handled the problem so sloppily.政府显然没有吸取教训，不然不会把问题处理得那么草率。I must enroll the children for piano lessons before next week.我必须在本周内给孩子们报名学钢琴课.This l...
A decline trend of the transmission of malayan filariasis, therefore, has been exhibited.在达到基本消灭丝虫病地区, 马来丝虫病传播流行呈下降态势, 防治措施可以?Objective To improve the diagnosis and the treatment of filariasis.目的为提高丝虫病的诊断和治疗水平.The water ...