短语词组短語butt t rot 乾基腐朽;根腐butt -rot 乾基腐朽root and butt rot 立木腐朽菌butt and root rot 乾基腐朽pineapple butt rot 菠蘿基腐病brown butt rot of oaks 櫟乾基褐腐brown butt rot of pines 松乾基褐腐 返回 butt rot