2. I have to consider in earnest about my future. �ұ��������˼�������Լ�δ�������⡣
3. I might not best teacher, but I am best earnest and best enthusiastic teacher. ��Ҳ��������õ���ʦ����������������Ҳ�����ĵ���ʦ��
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n.
1. something of value given by one person to another to bind a contract
2. characterized by a firm and humorless belief in the validity of your opinions
3. earnest
4. not distracted by anything unrelated to the goal