词汇	secondary oil
释义	secondary oil 次油
随便看	shorthand sign Shorthand Skills and Quick Adoptions shorthand typist shorthand-typist shorthand typists shorthand-writer shorthand writer rs note shorthand writer's notes shorthand writing Short harpin RNA short-haul flight short haul modem short-haul modem short-haul PCM system short haul road service short-hauls Short Haul System Simulation short haul toll circuit short-haul train short-haul trip shorthaul short haul short-haul short-haul aircraft short haul cable carrier system