单词	back-story
释义	back-story 背景故事
随便看	standard bil standard billing rate standard bill of lading standard bin standard binary code standard biochemical oxygen demand standard biochemical oxygen domand standard bird standard blackbody source standard blank standard blanket policy standard blasting crater standard block standard block gauge standard block of hardness standard bod standard body standard body beef standard body cross standard body weight standard bolt standard bone meal standard book Standard Book Number standard branch 归云一去无踪迹归人掩泪看归仍万里赊归何暮归兴千里归兴浓于酒归军星散营归卧南山陲归去一云无踪迹归去凤池夸武馆歧歧义歧出歧化反应歧异歧指歧管歧见歧视