逐渐消失：因使用而逐渐消失或变薄、变小等。
磨损掉：逐渐消失或变薄、变小等。
cut away in small pieces
同义词： whittle away / whittle down
diminish, as by friction
同义词： wear off
... 消声器 noise reduction equipment 消蚀 wearing away; erosion; ablation 消蚀 erosion; wearing away; ablation ...
The hand of the door is wearing away.
这门的把手已磨损了。
The long winter night was wearing away.
漫长的冬夜逐渐过去了。
That is why the machine parts were wearing away during use.
那就是机器零件在使用过程中磨损的原因。
Erosion: wearing away of the land, usually by the action of natural forces.
Erosion, caused by acidic substances, is a wearing away of the enamel coating of teeth.
The forces of global integration are a great tide inexorably wearing away the established order of things.