早产是围产期死亡的主要原因。

Premature birth is the main cause of perinatal mortality.

《柯林斯英汉双解大词典》

结论：早产是新生儿发病和死亡的主要原因。

Conclusion: Premature birth was the main causes of infantile disease and death.

youdao

宫内感染是早产发生的重要原因。

Intrauterine infection is a major cause of preterm delivery.

youdao

早产儿一直被视为有控制和监护的产床分娩的一个原因。

Prematurity has always been considered a reason for a controlled and monitored bed birth.

youdao

早产儿一直被视为有控制和监护的产床分娩的一个原因。

Prematurity has always been considered a reason for a controlled and monitored bed birth.

youdao