英语语法分析

At this point the subpopulations have evolved into distinct species.

这时，亚种群已经进化成不同的物种。

In general, the subpopulations of most species are separated from each other by some measurable distance.

一般来说，大多数物种的亚种群之间都有一定的距离。

Of the nineteen recognized polar bear subpopulations, three are declining, six are stable, one is increasing, and nine lack enough data.

在19个公认的北极熊亚种群中，3个在下降，6个较稳定，1个在增加，9个缺乏足够的数据。