Chapter.2

练习内容

[{"word":"substance","pronun":"\/\u02c8s\u028cbst\u0259ns\/","translation":"n.\u7269\u8d28;\u7269\u54c1;\u4e8b\u5b9e\u6839\u636e"},{"word":"insist","pronun":"\/\u026an\u02c8s\u026ast\/","translation":