"Fraud"和"liar"都是英语中的词汇，但是它们有不同的含义。
"Fraud"通常指欺诈、诈骗、欺骗等行为，是一种犯罪行为。例如：- The bank has filed a fraud case against the company.(银行对该公司提起了欺诈诉讼。)- He was found guilty of fraud and sentenced to five years in prison.(他被判犯有欺诈罪并被判处五年监禁。)"Liar"则指说谎的人，是一种不良行为。例如：- She always tells lies and no one trusts her.(她总是说谎，没有人信任她。)- He was caught lying to his boss about his work performance.(他被发现对他的老板撒谎关于工作表现的事情。)
