1. Wrinkled silk will flatten out again if you iron it. �����˵ij��ӣ�����������̿����ٱ�ƽ��
2. The video evidence reveals that water droplets first flatten out as they fall. �����Ƶ֤�ݽ�ʾ��ˮ����������������ȱ�ƽ��
3. Inflation pressures would still exist in 2008, but would gradually flatten over the year, said the report. ͨ�����͵�ѹ����2008�꽫�������ڣ����ǻ���ƽ������������ơ�
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v.
1. make flat or flatter
2. become flat or flatter
3. lower the pitch of (musical notes)