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...
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...
This provides useful information on the type of occurrences.所有资料提供有关矿床类型的有价值材料.Many seemingly inexplicable occurrences and disappearances have taken place in this particular area.多数表面上无法说明的发生事情和失踪在这个特别的区域中发生.Newspapers r...