英語候補to count wrongly on purposeto inflate or deflate one's ageto manipulate figures to one's advantage
足元を見るあしもとをみる慣用句ことわざ未分類to size up (e.g. customer when setting a high price)to take advantage (e.g. of a weak situation)
災いを転じて福となすわざわいをてんじてふくとなす慣用句ことわざ未分類to turn the potential disaster to one's advantageto turn misfortune into fortune (esp. through one's own efforts)