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今日长难句翻译：

The fact that online daters have so much more choice can break down barriers: evidence suggests that the internet is boosting interracial marriages by bypassing homogenous social groups.
句子主干：the fact that … can break down…: evidence suggests that…
句子难点：复合句+生词
参考译文：在线约会者有着更多选择这一事实，可以打破社会中存在的障碍：有证据表明，互联网通过避开相似的社会群体，推动了跨种族婚姻。