因未能偿还债务而对……提起诉讼
sue…for failure to repay debts
A：She sued the company for failure to repay debts of more than US$50000.
她因为那家公司未能偿还五万多美元的债务而对他们提起了诉讼。
B：The company should pay back the money as soon as possible.
那家公司应该立刻还钱。
sue /sju?; su?/ v. （对某人）提起诉讼；控告
failure /?fe?lj?(r)/ n. 未做；未履行；失败
某人卷入一起债务纠纷
embroil oneself in a dispute over debt
A：It's reported that a pop singer embroiled herself in a dispute with her agent over the debt.