单词	start a journey
释义	start a journey 出发去旅行
随便看	polarity reversing switch polarity-reversing switch polarity selection polarity selection multiparty system polarity selector polarity sensing element polarity sensitivity polarity separation technique polarity sequence POLARITY SHIFTS-IN CONSCIOUSNESS Polarity Signal Light polarity solvents polarity splitter polarity standard polarity subchron polarity subinterval polarity subzone polarity superchron polarity superinterval polarity suppressor polarity switch polarity system polarity telegraph system polarity terms polarity test