Late marriage and late childbirth shall be encouraged.

晚婚晚育应予鼓励。

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Among these women, the researchers found, late childbirth indeed conferred longer life.

通过对这些女性的调查，研究人员发现，晚育确实与长寿有关。

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Smith and his colleagues are now going to investigate whether late childbirth and longevity are related to life-shortening illnesses like heart disease and cancer.

史密斯和同事还将研究晚育和寿命的关系是否与心脏病和癌症等致人短命的疾病有关。

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Masako is often held up as a model for Japanese women, who are increasingly pursuing professional careers, marrying late, if at all, and postponing childbirth.

CNN: AN HEIR OF CHANGE IN JAPAN