to study hard, usually by reading about or learning something, especially before taking an exam(尤指在考试前)刻苦学习,用功复习
someone, usually a child, who studies very hard书呆子(通常指小孩)
abbreviation for strengths, weaknesses, opportunities, threats: a way of considering all the good and bad features of a business situation or a company优势、劣势、机会和威胁(strengths, weaknesses, opportunities, threats的缩写)
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