单词	signal polarity
释义	signal polarity 信号极性
随便看	open a gap open a gate for open a gate to openagent openagents open a great source of wealth openair open-air open air open-air breather open-air chamber open air climate open-air climate open-air concert-hall open air condenser open-air condenser open-air drying open-aired open air facilities open-air hydroelectric station open-air ionization chamber open-airish open-airishness open air life open-air market 养儿待老，积谷防饥养儿防老养儿防老，积谷防饥养兵千日，用兵一时养兵千日，用在一朝养军千日，用军一时养军千日，用在一时养军千日，用在一朝养威蓄锐养子防老，积谷防饥 34748 34749 34750 34751 34752 34753 34754 34755 34756 34757