在海地，有25%的新生儿出生时体重不足，这大大影响到婴儿的存活率和人的预期寿命。
In Haiti, 25% of newborns have a low birth weight, affecting the survival of infants and thus the population's life expectancy.
但是如果婴儿还不足半盎司重，那些英磅的体重是从哪里来的呢？
But if the baby still weighs less than half an ounce, where are all those pounds coming from?
但是如果婴儿还不足半盎司重，那些英磅的体重是从哪里来的呢？
But if the baby still weighs less than half an ounce where are all those pounds coming from?
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