something regarded as worthless; rubbish
废物,垃圾
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there are bargains if you have the patience to sift through the dross. 如果你有耐心细心查看一下那些废物的话,便宜货还是有的。
foreign matter, dregs, or mineral waste, in particular scum formed on the surface of molten metal
杂质,渣滓;(尤指)浮渣。
"Old English