1. to obstruct the development of good relations between the two countries �����������Ѻù�ϵ�ķ�չ
2. Please do not obstruct the switch of the elevator door. Stand back from the door while the elevator is in use. �������κ�������ס���Ż���ŵ��������أ�ʹ������ʻ�����������������п����š�
3. Emergency remote controlled locking function can obstruct suspicions from stepping out the safety cabin and prevent crime effectively. ����ң�عرչ��ܣ��ɽ�����������ڰ�ȫ�Ų��ڣ���ЧԤ��������Ϊ�ķ�����
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v.
1. hinder or prevent the progress or accomplishment of
2. block passage through
3. shut out from view or get in the way so as to hide from sight