retentiveness是什么意思

n.保持力,好记性

1. Her retentiveness allows her to easily recall information from years ago.
她的记忆力好，能够轻松回忆数年前的信息。
2. The retentiveness of the student impressed the teacher, as he could easily remember all the details from the lecture.
学生的记性让老师印象深刻，他能轻松记住讲座中的所有细节。

保持记忆力；记性好