英语释义
1. the scum or unwanted material that forms on the surface of molten metal
2. waste or foreign matter impurity
3. something that is base (see base entry 3 sense 1), trivial, or inferior
There is quite a lot of dross on TV these days. a talent for turning literary dross into gold
4. unwanted material that is removed from a mineral (such as gold) to make it better
5. something of low value or quality