Instead, cash that leaves a bank for a money-market fund is credited to the fund's bank account, from which it is used to purchase the commercial paper or short-term debt in which the fund invests.

，从银行流向货币市场基金的现金被记入该基金的银行账户，购买该基金投资的商业票据或短期债券。

Ulrich, a chemical engineer who'd worked in commercial paper milling.

乌尔里希，一位曾在商厂工作的化学工程师。

They're basically like a mutual fund that invests in very short-term government debt or commercial paper.

它们基本上就像投资短期政府债务或商业票据的共同基金。