1. Shark, carp, and eel are fishes . ���㣬��������㶼���㡣
2. The "seed" itself might be the tooth of a prehistoric shark. ��š����ӡ�����Ҳ����һ��ʷǰ��������ݡ�
3. Muscles and fins give the shark its speed and maneuverability in the water. ������ˮ��ƾ�����ļ�������������ߵ��ٶ��Լ�����ԡ�
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n.
1. any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough sk
2. a person who is ruthless and greedy and dishonest
3. a person who is unusually skilled in certain ways v.
1. play the shark; act with trickery
2. hunt shark