在美国，胎儿先天缺陷的几率为33分之1。
While birth dffects can be genetic, or inherited, some can be caused by things a woman does before or during pregnancy such as using alcohol or tobacco,
先天缺陷有可能是基因造成，也有可能是先天遗传造成，女性在怀孕期间抽烟或饮酒，
having uncontrolled diabetes, taking certain medications or being obese at the beginning of pregnancy.
患有糖尿病，肥胖症，或是在怀孕早期服用某种特定药物，这些都会造成胎儿先天缺陷。
Women can greatly improve their chances of giving birth to a healthy baby by consuming 400mg of the B Vitamin, folic acid every day before and during pregnancy;
在怀孕前后，每天服用400毫克叶酸会大大增加女性孕育健康婴儿的几率;
maintaining a healthy weight, controlling diabetes and abstaining from alcohol and tobacco during pregnancy.
在怀孕期间保持健康体重，控制糖尿病，忌烟忌酒。
1.birth defect 天生缺陷
例句：Onstage, Mellencamp said he was lucky to be there, and he shared the story of having to undergo lifesaving surgery for a spinal birth defect at the age of six weeks.
在舞台上，梅伦坎说他对自己能够入选感到荣幸，他然后讲述了自己出生六个星期后因天生脊柱缺陷而不得不做手术的经历。
2.such as 诸如
例句：Heroes such as Huang Jiguang will always live in the hearts of the people.
像黄继光这样的英雄人物， 将永远活在人民的心里。
3.give birth 生育
例句：There are countries in Africa where people live close to health facilities but they give birth at home.
在非洲一些国家，人们住在离卫生机构很近的地方，但却在家里生孩子。
4.abstain from 禁止
例句：Patrons are requested to abstain from smoking in the restaurant.
顾客请勿在餐馆内抽烟。
