superficial knowledge

...a superficial patina of knowledge...

表面上有点儿知识的样子

On the grass-roots have a bit of a superficial knowledge of production management.

对 基层 的生产管理有一点粗浅的认识.

I have only a superficial knowledge of the subject.

我对这门学问只是略知皮毛.

I have only a superficial knowledge of this subject.

我对这个问题仅略知皮毛.

...a superficial patina of knowledge...

表面上有点儿知识的样子

Father had no more than a superficial knowledge of music.

父亲对音乐只懂一点皮毛。

It is dangerous that you have a smattering of superficial knowledge on a subject.

对于任何问题一知半解的知识都是危险的.

Many residents say they have little or no idea who's standing for election.

很多居民说他们几乎不知道谁在竞选。

He has a superficial knowledge of this subject.

他对这门学科略知皮毛.

The barriers reported in the research are mostly superficial and emotional, while the true barrier to teaching Blended Learning courses may be the deep integration of teachers' technological, pedagogical and content knowledge.

以上发现的障碍基本都是浅层次的、感性的，而真正阻碍混合式课堂教学效果的原因可能是教师的专业知识、教学知识和技术知识的深层次整合。