“丧失信用”常见的英文表达有 lose credibility、lose one's credit 或 forfeit credit。
lose credibility：强调失去他人的信任和认可，在商业、政治、个人声誉等多个领域都适用。例如：The company's repeated delays in delivery have caused it to lose credibility among customers.（公司多次延迟交货，导致在客户中丧失了信誉。）
lose one's credit：侧重于失去信用额度、信誉等具体概念，常用于金融、商业交易场景。例如：He lost his credit in the local bank due to several overdue loans.（由于几笔贷款逾期，他在当地银行丧失了信用。）
forfeit credit：“forfeit”有“丧失、因过错而失去”的意思，“forfeit credit”表示因不当行为或违反规定而失去信用。例如：The businessman forfeited his credit by engaging in fraudulent activities.（这位商人因从事欺诈活动而丧失了信用。）