21的英文缩写形式

问题描述

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21的英文缩写21st(twenty first)21的英语缩写21st的英语例句1. DAB is the radio system of the 21st Century.数字音频广播是21世纪的无线电广播系统。

2. His speech called for a step change in attitudes to the environment in the 21st century.他的演讲呼吁在21世纪彻底改变对待环境的态度。

3. His shot in the 21st minute of the game rebounded from a post.在比赛进行到第21分钟时，他的一记射门击中门柱弹了回来。

4. Supersonic flight could become a routine form of travel in the 21st century.搭乘超音速飞机会成为21世纪常规的旅行方式。