约翰逊刮胡子时刮伤了自己。Johnson cut himself shaving.在那桌子的表面上有几条刮伤痕迹.There are several scraping scar marks on the surface of that table.他修剪玫瑰时双手刮伤得很厉害.He scratched his hands badly while pruning the rosebushes....
In the presence of ethanonitrile and glycol, anisole reacts with ammonium ceric nitrate to form o - nitroanisole.在乙腈、聚乙二醇存在下, 用苯甲醚与硝酸铈铵反应合成了邻硝基苯甲醚.Calcium reacts with water.钙和水会发生化学反应。Once in water, it reacts to form car...