求翻译：二手烟对孕妇及儿童健康造成的危害尤为严重。有充分证据说明，孕妇暴露于二手烟可以导致胎儿猝死综合征和出生体重降低。是什么意思？

Of passive smoking on the health of pregnant women and children, the harm is particularly severe. There is sufficient evidence that pregnant women exposed to secondhand smoke can lead to fetal death syndrome and lower birth weight.

second hand smoke on pregnant women and children's health as a result of damage is particularly serious. Note that there is sufficient evidence that pregnant women exposed to second hand smoke can lead to fetal sudden death syndrome and low birth weight.

Two smoke the harm which creates to the pregnant woman and the child health especially are serious.Some ample evidence showed that, the pregnant woman exposes in two smoke may cause the embryo to sudden die the synthesis to draft with the birth body weight reduces.

Health hazards of passive smoking on pregnant women and children are particularly serious. There is sufficient evidence that maternal exposure to secondhand smoke can cause a reduction in birth weight and fetal sudden death syndrome.

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