樂觀主義

• Traditional Chinese Character(HanT): 樂觀主義
• Simplified Chinese Character(HanS): 乐观主义
• Bopomofo(Mandarin Phonetic Symbols): ㄌㄜˋ ㄍㄨㄢ ㄓㄨˇ ㄧˋ (ㄌㄍㄓㄧ)
• Bopomofo(Zhuyin Keyboard Input/IME): "xk4ej0 5j3u4" (xk4ej05j3u4)
• (ASCII) Hanyu Pinyin: "leguanzhuyi" "Le4Guan1Zhu3Yi4" "Le4 Guan1 Zhu3 Yi4" (LGZY)
• (Latin) Hànyǔ Pīnyīn: LèGuānZhǔYì [ Lè Guān Zhǔ Yì ]
• (英文翻譯) English Translation: "optimism"
• (西語翻譯) Traducción Español: "optimismo"
• (日文翻譯) 日本語翻訳: "楽観"