1. A small loudspeaker designed to reproduce high-pitched sounds in a high-fidelity audio system. '��Ƶ'��''�������ڸ߱���ȵķ���ϵͳ����������''��'��Ƶ'��''����С��������
2. A high-pitched voice is when my fatIT scolds me; a low-pitched voice is when my fatIT speaks with his boss. �������������Ҹ������ҵ�ʱ�䣬�������������Ҹ���������˵����ʱ�䡣
3. Other animals, such as cats, bats, moles, hedgehogs, and dolphins, can also hear high-pitched sounds, or ultrasounds. ����������è����������⬺ͺ���Ҳ�ܹ����������������������dz�������
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adj.
1. used of sounds and voices; high in pitch or frequency
2. set at a sharp or high angle or slant