Undecided questions
Please can you check these Chinese word and phrase translations

多于-More than
高于-higher than
优于-superior to-better than
高出-overshadows
胜于-surpass
一旦-once-(a single day, I am not sure this one. once is correct.)
就。。来说-speaking of
就。。而言-in terms of
女强男弱-women are strong, men are weak?
阴盛阳衰-？(It's the same as the last one. Women are strong are weak. )
男强女弱-Men are strong， women are weak？
阳盛阴衰-？(it's the same as the lase one. Men are strong, women are weak)

These four words are talking about social society situation.

男女比例-male to female ratio
女多男少-More woman than men
高等教育-higher education
初等教育primary education
中等教育-secondary education
学生能力-student abilities
学生成绩-students results
or grades

考试成绩-exam results (or grades)
大学阶段-university stage？ (During the university. like the time in unyiversit
中途辍学-drop out of school
毕业前景-graduate prospects
教育产业-education industry
社会精英-social elite
精英阶段-elite stage？ (the time of elite.) I am not sure my explain makes sense. sorry.
政策研究-policy research
一项调查-a survey/investigation
调查表明- investigation/survey shows
调查报告-investigation report
报告指出-report points to
差强人意-just passable-satisfactory
(not good enough or don't get people expected)

不断提升-constantly increasing
不断下降-constantly declining
关键在与-key to
并非坏事-not a bad thing
基本持平-basically equal
引人注意-draws attention
各有不同-varies
普遍现象-phenomenon
产生影响- produce an affect ( affect, influence)
巨大影响- huge affect
影响巨大 the affects were huge? （跟巨大影响有什么区别？）
例子： 他对中国电影业的影响巨大。
他对中国电影业有着巨大影响。

相关产业-related industries

问题补充:
sorry I miss read one 精英阶段 should be 精英阶层-elite sector？

I think精英阶段是指 during the time of being elite.
and 精英阶层it looks elite sector
I also missed 学术能力-Learning ability

This is what I am thinking. Maybe some others will add more details for you. :)

影响巨大 and 巨大影响
影响巨大中，＂影响＂是名词，＂巨大＂是形容词，重心是＂巨大＂，强调的是影响是巨大的，不是细微的影响。所以＂影响巨大＂整体是作为一个形容词词组
巨大影响中，同样，巨大是形容词，影响是名词，但是他们处的位置不一样，整个词组的重心变成了＂影响＂，强调的就是巨大的是影响，而不是其他的东西，所以＂巨大影响＂整体是作为名词词组。

优于-superior to-better than-- superior to有时还指优越于，地位高于
高出-overshadows -使之黯然失色，逊色于
一旦-once-a single day -once是一旦的意思，但是一旦不是指一天，有时古文中旦昼都指白天，但是一旦和旦就是完全不同的意思，是假设语气

影响巨大 the affects were huge? （跟巨大影响有什么区别？）巨大影响整个是做名词用的，你可以说改革对农民生活有着巨大影响。但是影响巨大可以算作动词后面跟着副词affects deeply/wildly/profoundly，造句时前面直接主语就可以，这件事影响巨大。（力度较强）

sorry I miss read one 精英阶段 should be 精英阶层-elite sector？-elite sector would be better
I also missed 学术能力-Learning ability -- learn ability 一般说学习能力，学术这词更讲究一点，academic ability更合适