二十一世紀

• Traditional Chinese Character(HanT): 二十一世紀
• Simplified Chinese Character(HanS): 二十一世纪
• Bopomofo(Mandarin Phonetic Symbols): ㄦˋ ㄕˊ ㄧ ㄕˋ ㄐㄧˋ (ㄦㄕㄧㄕㄐ)
• Bopomofo(Zhuyin Keyboard Input/IME): "-4g6u g4ru4" (-4g6ug4ru4)
• (ASCII) Hanyu Pinyin: "ershiyishiji" "Er4Shi2Yi1Shi4Ji4" "Er4 Shi2 Yi1 Shi4 Ji4" (ESYSJ)
• (Latin) Hànyǔ Pīnyīn: èrShíYīShìJì [ èr Shí Yī Shì Jì ]
• (英文翻譯) English Translation: "twenty-first century"
• (西語翻譯) Traducción Español: "siglo veintiuno"
• (日文翻譯) 日本語翻訳: "21世紀"