abbr. 
衡（balance）；配（balancing）
衡（balance）；配（balancing）用户正在搜索
active site, active transport, active voice, actively, actives, activetype, activevocabulary, ActiveX, activin, activise,
相似单词
Bakthane, baktun, Baku, bakula, Bakunin, bal, balaam, balaclava, Balaenidae, Balakirev,