短語詞組短語bill for premature delivery 提前交付的票據(jù)threatened premature delivery 先兆早産premature delivery rat 早産大鼠drugs against premature delivery 抗早産葯iatrogenic premature delivery 毉源性早産premature delivery prevent 早産預(yù)防predicting premature delivery 早産預(yù)測(cè)incidence of premature delivery 早産率intervening premature delivery 乾預(yù)性早産 返回 premature delivery