n.废料,渣滓,劣质品,糟,熔渣
What's gold and silver ? Mere dross.
金银财宝,身外之物.
Frequent skimming or improper skimming can cause a much higher dross loss.
撇渣过频或操作不当会使浮渣损失很大.
I go through phases where everything I write is just dross.
有几段时间我写什么都是垃圾。