1. His enthusiasm was sincere and his criticism acute. ������������ʵ�ģ���������̵ġ�
2. The acute transformation of society makes it a world tide to reform education. ���ľ��ұ��ʹ�ý����ĸ��Ϊһ�������Եij�����
3. Working in the place without danger of fire, exploding, acute shaking , chemistry erosion and serious dirtiness. û�л��ֱ�ըΣ�գ�û�о�������ѧ��ʴ�������ۻ�ij�����
ӢӢ����
n.
1. a mark (') placed above a vowel to indicate pronunciation
2. having or experiencing a rapid onset and short but severe course
3. extremely sharp or intense
4. having or demonstrating ability to recognize or draw fine distinctions
5. of an angle; less than 90 degrees
6. ending in a sharp point
7. of critical importance and consequence