num.第八，八号；八分之一；adv.第八；八分之一；八分音符；n.第八个；八分之一；（每月的）第八日； 变形： 复数：eighths 英英释义： eighth[ eitθ, eiθ ]n.position eight in a countable series of thingsone part in eight equal parts同义词：one-eighthadj.coming next after the seventh and just before the ninth in position