1.
A discolored spot, smudge, or area; a stain.
变色点，污渍，污处，污迹
2.
soiled with dirt or soot.
被污垢或者煤烟污染。
3.
antipollution vessel
反污染船污染清除船
4.
To spot, blemish, or pollute.
使有斑点、玷污或污染
5.
make a spot or mark onto.
沾污一个污点或作标记。
6.
air pollution; airborne pollution; air pollution
空气污染(大气污染)
7.
completely free from dirt or contamination.
完全没有污垢和污染物。
8.
A spot or blotch of color.
斑点有色的污点或污渍
9.
clear from impurities, blemishes, pollution, etc..
去除杂质污渍污染等。
10.
or contamination with industrial or farm waste.
或工农业污水造成污染。
11.
discharge prediction of industrial pollution sources
工业污染源排污预测
12.
To spill or spread in a spot or stain.
（污点或污渍）溅出或蔓延
13.
combined sewage
混合污水,合流污水
14.
soiled or likely to soil with dirt or grime.
被污染的或者像是被污垢或者污点所污染。
15.
To make smudges or stains by smearing.
沾上污迹因油污使脏污或染色
16.
Foul or dirty matter.
污物，污秽污秽或肮脏的东西
17.
To cover with black dirt or soot;begrime.
使积满污垢被黑色污垢或煤灰覆盖、弄脏、沾污
18.
not spreading pollution or contamination; especially radioactive contamination.
不会散布污染或者污染物；特别是放射性污染物。