The frightened dingo glanced down at the ground.Then it crouched back on its hind legs.请问这句话的意思:Then it crouched back on its hind legs.

x��)��HUH+�L�(I�KMQH��K�WH�I�K����KJ��ҋ�K�R���2K���������l�|�X�BFf^�BNjz�ދ��_N_�b�̧�K_���|V˳��g s���o�T�O+��ͦ؁�v6�;���l{:����MO�x:{�ӎ O[�"����/.H̳�r�ِ