I'm really depressed about my proficiency test grade.

我的能力测试成绩真的很令我失望。

youdao

I think this experience well demonstrated my proficiency in English.

我个人认为这次活动很好地证明了我在英语方面的能力。

youdao

My proficiency in French earned me a regular spot on a nationally broadcast Swiss radio program, in which a Russian child and I discussed tensions between major world powers.

因为法语口语很流利，我有幸在瑞士国家广播电台主持一档节目，节目的内容主要是我和一个俄罗斯的孩子谈论主要的几个世界强国之间紧张的格局。

youdao

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