Noun:

1. a thin film of oil floating on top of water (especially crude oil spilled from a ship)

oil wel油井oiln.油；油画颜料；奉承话v.涂油；溶化；加油Oilfield Enterprisers油田企业oil collecting system集油系统oil-quenching steel油淬火钢oil accumulating area聚油面积oil-gas enterprises油气企业oil-soluble pigment油溶性橘黄素oil of orange flowers[化] 橙花油oil-well wastewater油井废水oil-field separator油气分离器oil spilling accident溢油事故