1. We must first calculate the horse-power needed to propel the ship. ���DZ������ȼ�����������Ҵ���Ҫ���������
2. Can we calculate on their help? ������ָ�����ǰ���ô?
3. He must calculate the probability of failure. ���������һ��ʧ�ܵĸ��ʡ�
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v.
1. make a mathematical calculation or computation
2. judge to be probable
3. keep an account of
4. predict in advance
5. specifically design a product, event, or activity for a certain public
6. have faith or confidence in