由于农村的工厂纷纷裁员，人们逐渐流向城市。As rural factories shed labour, people drift towards the cities.我们现在住在农村的一座美丽的新房子里.We are now living in a beautiful new house in the country.我坐在公共汽车的前部,以便更好地看一看农村的风光.I sat in the front of the bus to ...
And some minutely crystalline varieties, such as flint, may be opaque and of a waxy luster.某些细小的结晶变种, 如燧石, 可能是不透明的,并具有腊样的光泽.The flatting mechanism of low luster paint of organic solvent was introduced.介绍了有机溶剂型哑光涂料的消光机理.T...