７２１年

• Traditional Chinese Character(HanT): ７２１年
• Simplified Chinese Character(HanS): ７２１年
• Bopomofo(Mandarin Phonetic Symbols): ㄑㄧ ㄦˋ ㄧ ㄋㄧㄢˊ (ㄑㄦㄧㄋ)
• Bopomofo(Zhuyin Keyboard Input/IME): "fu -4u su06" (fu-4usu06)
• (ASCII) Hanyu Pinyin: "qieryinian" "Qi1Er4Yi1Nian2" "Qi1 Er4 Yi1 Nian2" (QEYN)
• (Latin) Hànyǔ Pīnyīn: QīèrYī [ Qī èr Yī ]
• (英文翻譯) English Translation: "721"
• (西語翻譯) Traducción Español: "721"
• (日文翻譯) 日本語翻訳: "721"