idea ����ͨ���ôʣ������������κη����˼ά��� concept ָ���ڶ�ʵ����ͨ�����������ɶ��γɵĶ����ﱾ�ʡ�ȫò�����ڲ���ϵ�ĸ������ concept ionͨ��ָ���˻�һЩ�������еľ���������ͷ��Ҳ��ָ������γɹ��̣���һ�����������ɫ����ζ�� thought ָ��������˼���������Ϊ����������˼ά��������� notion ָ����һ��ģ���ģ��仯��Ī����뷨���ɿ��Ļ�����δ����˼���ǵĹ۵㡣 impression ָ�ⲿ�̼���˼������������ӡ��
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1. The room gave an impression of decease. �ⷿ�����һ��������ӡ��
2. What was your first impression of London? ����صĵ�һӡ����ʲô��
3. What is your first impression of Ocean Park? ��������ĵ�һӡ����ʲ�
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n.
1. a vague idea in which some confidence is placed
2. an outward appearance
3. a clear and telling mental image
4. a concavity in a surface produced by pressing
5. a symbol that is the result of printing
6. all the copies of a work printed at one time
7. (dentistry) an imprint of the teeth and gums in wax or plaster
8. an impressionistic portrayal of a person
9. the act of pressing one thing on or into the surface of another