1. I haven't heard wolves howling for a long time. ���Ѿ��кó�ʱ���������ǵ��ƽ��ˡ�
2. A sudden howl pierced the silence. ͻȻһ���ƽл����˼ž���
3. Howl in the night: I am a wolf, a wounded wolf. ����ҹ�ճ�Х������һƥ�ǣ�һƥ�����˵��ǡ�
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n.
1. a long loud emotional utterance
2. the long plaintive cry of a hound or a wolf
3. a loud sustained noise resembling the cry of a hound v.
1. emit long loud cries
2. cry loudly, as of animals
3. make a loud noise, as of wind, water, or vehicles
4. laugh unrestrainedly and heartily