U

练习内容

[{"word":"ugly","pronun":"[\u02c8\u028c\u0261li]","translation":"adj. \u96be\u770b\u7684; \u4e11\u964b\u7684; \u8ba8\u538c\u7684; ..."},{"word":"umbrella","pronun":"[\u028cm\u02c8brel\u0259]","transla