noun 下载 🔗分享 复元音，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 "beautiful" contains two diphthongs. " "beautiful"这个词包含两个复元音，也就是双元音。 phonetics linguistics language sound grammar 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 : "My English teacher explained that the "oi" in "coin" and the "ou" in "house" are examples of diphthongs. " 我的英语老师解释说，“coin”（硬币）中的“oi”和“house”（房子）中的“ou”都是复合元音，也就是双元音的例子。 language linguistics phonetics grammar 与AI对话词汇游戏阅读练习
