A

练习内容

[{"word":"a","pronun":"[ei]","translation":"art. \u4e00; \u4e00\u4e2a; \u4ef6"},{"word":"able","pronun":"[\u02c8eibl]","translation":"adj. \u80fd; \u80fd\u591f; \u6709\u80fd\u529b\u7684; \u80fd\u5e72.