1. Agent: I have my checkbook right here. ������̽���ҵ�֧Ʊ�������ߡ�
2. For a quick check on your heart, check out your checkbook. Ҫ����ټ������ģ��Ǿ��ȼ�����֧Ʊ����
3. It seemed like a good idea to him, and no one else was doing it, so he pulled out his checkbook. ������˵�������Ǹ������⣬Ҳû�����������������������ͺ�����ԥ����Ǯ�����ˡ�
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n.
1. a book issued to holders of checking accounts