单词	思想精髓
释义	思想精髓 thinking quintessence
随便看	planetary-scale system planetary science planetary-science planetary scientist planetary screw planetary screwdown planetary screw extruder planetary seismolegy planetary seismology planetary selvage device planetary society planetary soil planetary space planetary spacecraft planetary spacecraft propulsion system planetary spacecrafts planetary space flight planetary space navigational system Planetary Space Vehicle planetary speed changing device planetary speed changing devices planetary speed reducer planetary spindle planetary steering device planetary steering gear