求翻译：　　“其直接影响是‘婚姻梯度挤压’现象凸显。”翟振武说，同龄适婚女性短缺，男性就会从低年龄女性中择偶，“老夫少妻”增多；挤压到一定程度，就要向别的地区发展，“城里哥找乡下妹”。是什么意思？

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"Its direct impact is ' ' Marriage squeeze gradient highlight phenomenon. " said that peer zhaizhengwu marrying female shortage, male from low-age females May-September couples choose a spouse, " " has increased; extruded to a certain extent, it will have to some other area development, " " sister-c

　　“Its direct influence is the `marriage gradient extrudes the' phenomenon to highlight.” Zhai Zhenwu said that, the same age nubile female is short, the male can select a friend for marrage from the low age female, “the old man few wives” increase; Extrudes certain degree, must to other local devel

　　"The direct impact of which is ' marriage gradient extrusion ' highlights. "Zhai Zhenwu said, the same age shortage of marriageable women, males will mate from the low age of female," December and may "increase squeezed to a certain extent, to other areas," sister brother found the country in the

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