单词slow-on-the-uptake
Robert is so slow on the uptake you have to tell him everything ten times before he gets it right.
罗伯特领会得很慢，你得每件事给他讲10遍，他才能搞清楚。
Craig isn"t slow on the uptake, he just needed some good advice.
克雷格理解力并不差，他只是需要一些好建议。