常見(jiàn)例句雙語(yǔ)例句Objective To study the antitumor effects of the extraction of birch bark(EBB)and its influence to the immune function of the tumor-bearing mice.目的探討樺樹(shù)皮的抗腫瘤作用和對(duì)荷瘤小鼠免疫功能的影響。 返回 birch mice