单词	river shark
释义	river shark noun : a shark (such as the bull shark or Ganges shark) that frequents freshwater and especially rivers Word History First Known Use 1810, in the meaning defined above
随便看	tail tackle tail tree tail trimmer tail twisting tail unit tail up tail wheel tail-female tail-heavy tail-kidney tail-male tail-pipe burner tail-rhyme stanza tail-rhymed stanza tail-wagging tailback tailbacks tailband tailboard tailboards tailbone tailbones tailcoat tailcoated tailcoats

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