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opacify, opacifying, opacimeter, opacite, opacity, opacus, opah, opal, opal glass, opalesce,

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铬合金, 铬红, 铬黄, 铬尖晶石, 铬绿, 铬钼钢, 铬铅矿, 铬酸, 铬酸铵, 铬酸处理,

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OPAMP, opaque, opaquely, opaquer, opaques, opart, OPC, opcode, OPD, OPDAR,

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铬合金, 铬红, 铬黄, 铬尖晶石, 铬绿, 铬钼钢, 铬铅矿, 铬酸, 铬酸铵, 铬酸处理,

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open ended, open fire, open fracture, open house, open interval, open letter, open order, open plan, open sandwich, open secret,

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铬合金, 铬红, 铬黄, 铬尖晶石, 铬绿, 铬钼钢, 铬铅矿, 铬酸, 铬酸铵, 铬酸处理,

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opencast, opencut, OpenDoc, open-door, open-eared, open-end, open-ended, opener, open-eyed, open-faced,

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铬合金, 铬红, 铬黄, 铬尖晶石, 铬绿, 铬钼钢, 铬铅矿, 铬酸, 铬酸铵, 铬酸处理,

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open-minded, openmouthed, open-mouthed, openness, open-plan, open-platform, open-reel, open-shelf, opensubmanifold, opensyllable,

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铬合金, 铬红, 铬黄, 铬尖晶石, 铬绿, 铬钼钢, 铬铅矿, 铬酸, 铬酸铵, 铬酸处理,

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operand, operandi, operands, operant, operant conditioning, operate, operate on, operated, operated-slowly, operates,

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铬合金, 铬红, 铬黄, 铬尖晶石, 铬绿, 铬钼钢, 铬铅矿, 铬酸, 铬酸铵, 铬酸处理,

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operating statement, operating system, operating table, operatingperformance, operating-table, operation, operation code, operational, operational mine, operationalism,

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铬合金, 铬红, 铬黄, 铬尖晶石, 铬绿, 铬钼钢, 铬铅矿, 铬酸, 铬酸铵, 铬酸处理,

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opercular, operculate, operculated, operculiform, operculum, operetta, operette, opern, opero, operon,

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铬合金, 铬红, 铬黄, 铬尖晶石, 铬绿, 铬钼钢, 铬铅矿, 铬酸, 铬酸铵, 铬酸处理,

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ophidian, ophidiarium, ophidism, ophiobollin, ophiolater, ophiolatry, ophiolite, ophiology, ophiophagous, Ophir,

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铬合金, 铬红, 铬黄, 铬尖晶石, 铬绿, 铬钼钢, 铬铅矿, 铬酸, 铬酸铵, 铬酸处理,