她保留了许多副本以便作进一步的注解。She retained a number of copies for further annotation.仔细填写申请表，并且保存副本。Fill out the application carefully, and keep copies of it.我给交通部长发送了一份副本。I sent a copy to the minister for transport....
More often, all of the materials exposed to the etchant have a finite etch rate.通常, 所有暴露在刻蚀剂中的材料都具有一定的刻蚀速率.Hydrofluoric acid of Porcelain Etchant and phosphoric acid of UNI - ETCH are severe eye and tissue irritants.瓷酸蚀剂...
小尼姑之流是阿Q本来视如草芥的.Ah Q had always had the greatest contempt for such people as little nuns.这就是我们制造赤色尼姑的方法.This is how we made Red nuns.乖乖, 黛丝! 也许你应该去当尼姑.Gee, Daisy! Maybe you ought to be a nun....