词典释义：
a long-bodied chiefly marine fish with a cartilaginous skeleton, a prominent dorsal fin, and tooth-like scales. Most sharks are predatory, though the largest kinds feed on plankton, and some can grow to a large size.
鲨，鲛。
a small SE Asian freshwater fish with a shark-like tail, popular in aquaria
鲨尾鱼。
a light greyish-brown European moth, the male of which has pale silvery hindwings
冬夜蛾。
〈英，非正式〉（多指男子在社交场合中）努力追逐性伴侣
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as soon as he arrived he was sharking among the women .他一到，就在女士中寻找追逐的对象。
a person who unscrupulously exploits or swindles others
贪婪狡猾的人；敲诈勒索者；骗子
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Coleby was a shark, not the sort of man to pay more when he could pay less 科尔比是一个贪婪狡猾的人，可以少付钱时决不会多付
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[with modifier]
property sharks want to develop 200 acres around the site .那些贪婪狡猾的房地产开发商想在那块地周围开发200英亩土地。参见<Bold>LOAN SHARK</Bold>.
〈美〉 能手，专家
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a poor shark .一位可怜的专家。
" late Middle English：of unknown origin.late 16th cent.: perhaps from German
