哪位哥哥给我解释一下下面这句英文含义啊：
The problem can be posed most starkly for institutions such as Bear Stearns or Lehman Brothers that
financed themselves through a combination of short-term and long-term debt,
but where the heavy use of short-term debt made the institution vulnerable
to a run by the short term creditors.
其中的a run by the short term creditors是什么意思啊？谢谢啦~~