1. to essay an unexampled task ��ͼ��ǰ��δ������������
2. Please begin with this essay. �����ƪ���¿�ʼ��
3. The conclusion should summarise the essay. ��βӦ�ö����������ܽᡣ
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n.
1. an analytic or interpretive literary composition
2. a tentative attempt v.
1. make an effort or attempt
2. put to the test, as for its quality, or give experimental use to