1. He did not understand the importance of this question. ������������������Ҫ�ԡ�
2. Do you see it?Do you understand? �㾭����������?��������������?
3. How to say you do not understand. �������������������
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v.
1. know and comprehend the nature or meaning of
2. perceive (an idea or situation) mentally
3. make sense of a language
4. believe to be the case
5. be understanding of