With so many of the young people migrating to cities, where they speak Spanish, the Uru language could disappear within a few generations.
由于许多年轻人都搬到了那些讲西班牙语的城市居住，恐怕乌鲁语再过几代就失传了。
Left-handed people are more prone to some health problems, suggesting the trait ought to disappear naturally over many generations through natural selection.
左撇子的人容易出现健康问题，意味着经过许多代人的自然选择，左撇子这种特性应当消失。
Left-handed people are more prone to some health problems, suggesting the trait ought to disappear naturally over many generations through natural selection.
左撇子的人容易出现健康问题，意味着经过许多代人的自然选择，左撇子这种特性应当消失。
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