n.易懂性；可理解性
He is trying his best to understand his meaning. 他正在尽力弄明白他的意思。
I can not understand the so abstract concept. 我无法理解如此抽象的观念。
No one could understand the little baby's babble. 没人能听懂这个小婴孩的话。
I don't understand what his motive is. 我不知道他的动机是什么。
I can't understand that man's psychology. 我无法理解那个人的心理。
