如果没有物理屏障将继续在同一栖息地生活和繁殖的个体隔离开来，分化是否会出现？
Can divergence occur if no physical barriers are in place to separate individuals who continue to live and reproduce in the same habitat?
他们表示，人口减少可能是件幸事：生活水平将继续提高，而拥挤状况和环境方面的压力将有所缓解。
They say fewer people may be a blessing: growth in living standards will continue while congestion and pressure on the environment will be eased.
在寻求增长和更高的生活水平的过程中，国家将继续利用自由市场和自由贸易为崛起加力。
And in the search for growth and higher standards of living, countries will continue to use free markets and free trade to power their rise.
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