21的英文怎么写序数词

回答

爱扬教育

2022-02-26

21的英文序数词：twenty-first.
例句：
Welcome to the twenty-first century.
欢迎进入21世纪。

扩展资料

　　Seventeen civilians were hurt. Most are students who had been attending a twenty-first birthday party.

　　17名平民受了伤，其中大多数是参加一个21岁生日聚会的学生。

　　The task facing medicine in the twenty-first century will be to redefine its limits even as it extends its capacities.

　　21世纪医学面临的任务将是重新定义其限制，即使它扩大了其能力。

　　Geothermal energy probably will not make large-scale contributions to the world energy budget until well into the twenty-first century, if ever.

　　在进入21世纪之前，地热能可能不会对世界能源预算作出大规模贡献。

　　What defines a twenty-first-century entrepreneur?

　　21世纪创业者的特征有哪些？