A report this year from the EF Education First company listed Spain is a "low proficiency" country in English.

VOA: special.2011.07.21

It shows an assessment of reading proficiency levels in fourth grade.

这项研究对,四年级同学的阅读熟练程度。

麻省理工公开课 - 媒体、教育、市场课程节选

3% of black school children in fourth grade are left behind proficiency levels.

做了评估，其中，在四年级的黑人孩子里,63%阅读能力较差，58%的西班牙孩子。

麻省理工公开课 - 媒体、教育、市场课程节选

I only give, I don't know, about 10% or 20% for getting the right number in a computation. I tell my graders, if the student demonstrates minimal acceptable proficiency that student has to get a passing score.

我只是给，我不知道，10%或者20%的随机概率得到合适的数字,我告诉我的学生们，如果有人想证明,最小可接受的熟练,就是学生们得到一个及格的分数。

麻省理工公开课 - 固态化学导论课程节选