2. Her unhappy childhood is the key to her character. �����ҵ�ͯ�����γ����Ը��Ҫ����
3. Hope is bad for the happy man, and good for the unhappy. ϣ�����Ҹ������Dz��õ��£��Բ��Ҹ������Ǻ��¡�
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adj.
1. experiencing or marked by or causing sadness or sorrow or discontent
2. generalized feeling of distress
3. causing discomfort
4. marked by or producing unhappiness