案件的英文说法是 "case"。这个词的来源可以追溯到拉丁文的 "cadere"，意思是 "倒下，掉下"。

例句：

The police are investigating the case of the missing person. (警方正在调查失踪人口案。)

The lawyer will present the case in court tomorrow. (律师明天将在法庭上提交案件。)

The judge ruled in favor of the plaintiff in the case. (法官裁定该案件有利于原告。)