复数： liabilities

Product liability lawsuits are difficult to bring and win .

产品责任诉讼通常很难提出和胜诉。

The focus on liability hedging will increase , he adds .

他补充称，人们对债务对冲的关注将加大。

Social security and medicare have a total unfunded liability in excess of $ 100 trillion .

社会保障和医疗保险未备基金的负债已超100万亿美元。

The biggest liability is promises made to existing employees .

最重大的义务是向现有雇员许下的承诺。

Simple is perhaps it , but simplicity per se is hardly a liability in science .

也许确实是简单的，但简单本身很难说在科学上是不利条件。