单词	a vacuum
释义	a vacuum [网络] 真空
随便看	forward bargain forward base current forward-based forward beam forward bearing forward bending forward bent blade forward bias forward-bias forward biased forward-biased forward-biased rectifier forward biased rectifier forward biased second breakdown forward biassd p-n junction forward bitt forward blade forward block by block read all data (w) forward block by block read all data (wo) forward blocking interval forward blocking state forward blocking voltage forward book forward booking forward bow spring 锦4 锦上添花锦囊佳制锦囊佳句锦囊妙计锦囊玉轴锦囊还矢锦团花簇锦天绣地锦心绣口決意決戦決断決死決死隊決河決済決潰決然こたん