Phenols and anilides can be nitrated with very dilute nitric acid.酚类和酰基苯胺能被极稀的硝酸硝化.Aquatint: It is an etching process on copper or steel by means of nitric acid.水彩色调: 用硝酸在钢片或铜片上作腐蚀的蚀刻法.Aliphatic hydrocarbons can be nitra...
Helicopters fly in appalling weather to succour shipwrecked mariners.直升机在恶劣的天气条件下起飞前去援救遇难的船员。The speediest succour might avail to the preservation of his life.赶紧抢救也许能保住他的生命.Franklin Roosevelt's New Deal promised sec...
He told her their affair would have to stop, because Jack Smith was blackmailing him.他告诉她说他们的婚外情必须结束了,因为杰克·史密斯正在敲诈他。He told her their affair would have to stop, because Jack Smith was blackmailing him...他告诉她说他们的婚外情必须结束了,...