因此这个学会说：「任何企图建立分隔生物族群界线的企图是武断跟主观的。」

So "any attempt to establish lines of division among biological populations (is) both arbitrary and subjective, " the association said.

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在城镇情境中，各族群文化差异逐渐消失，但是文化的趋同并没有导致族群界线的消失。

In the town situation, the cultural differences are dying out gradually. However, the tendency towards convergence does not result in the disappearance of the ethnic boundaries.

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