开始用另一种颜色之前,把画笔上的蓝颜料全部洗掉.Wash all the blue out of your brush before starting on another colour.重点介绍了这些方法在纳米钴蓝颜料制备中的应用.And especially reviewed these methods'application in the preparation of cobalt aluminate pigment....
The slow-worm is in fact not a snake but a legless lizard.蛇蜥其实不是蛇，而是无脚的蜥蜴。Why were grown-ups always so stuffy and slow to recognize good ideas?为什么成年人总是那么一本正经，对好点子反应那么迟缓呢？The lorry was travelling at 20mph in the slow lane...