６２１年

• Traditional Chinese Character(HanT): ６２１年
• Simplified Chinese Character(HanS): ６２１年
• Bopomofo(Mandarin Phonetic Symbols): ㄌㄧㄡˋ ㄦˋ ㄧ ㄋㄧㄢˊ (ㄌㄦㄧㄋ)
• Bopomofo(Zhuyin Keyboard Input/IME): "xu.4-4u su06" (xu.4-4usu06)
• (ASCII) Hanyu Pinyin: "liueryinian" "Liu4Er4Yi1Nian2" "Liu4 Er4 Yi1 Nian2" (LEYN)
• (Latin) Hànyǔ Pīnyīn: LiùèrYī [ Liù èr Yī ]
• (英文翻譯) English Translation: "621"
• (西語翻譯) Traducción Español: "621"
• (日文翻譯) 日本語翻訳: "621"