official language
短语词组
- official document language 公文语言
- Official communication language 官方语言
- Joint official language 并行的官方语言
- central china official language 中原官话
- the official language 官方语言
- non -official language 非官方语言
- One official language 一种官方语言
- Either official language 语言 返回 official language