grime
grimenoun- [mass noun]dirt ingrained on the surface of something, especially clothing, a building, or the skin
(尤指深嵌在衣物、建筑物及皮肤表面的)污垢
verb- [with obj.](一般作 be grimed)blacken or make dirty with grime
将…弄脏,使积满污垢
windows grimed like a coal miner's goggles.
像煤矿工人的护目镜一样积满污垢的窗户。
语源- Middle English: from Middle Low German and Middle Dutch
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