noun 下载 🔗分享 复合元音, 双元音。 A complex vowel sound that begins with the sound of one vowel and ends with the sound of another vowel, in the same syllable. Examples : "The word "boy" contains a diphthong, as the sound starts with the vowel "oy" sound starts with the sound of "o" and ends with the sound of "i". " 单词"boy"包含一个双元音，因为"oy"这个音从"o"的音开始，到"i"的音结束。 language phonetics linguistics sound grammar word 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 复合元音，双元音。 A vowel digraph or ligature. Examples : "The word "audio" contains the diphthong "au". " 单词"audio"包含复合元音"au"。 language grammar linguistics phonetics 与AI对话词汇游戏阅读练习
