loan shark的复数形式怎么写？

He has fallen into the fangs of Jim the Loan Shark.他已落入放高利贷的吉姆的手掌.The loan shark sliced off my fingers with a saw.放高利贷的人用一把锯子切掉了我的手指....

loan shark的音标：loan shark的英式发音音标为：[ləun ʃɑ:k]loan shark的美式发音音标为：[lon ʃɑrk]...

n.放高利贷者...