Translate the following sentences into English.30年代的大难题刚刚得到初步控制，新的问题又出现了——前所未有的富裕社会和种族平等问题。
AS THE BIG PROBLEM OF THE THIRTIES WERE BROUGHT UNDER SOME KIND OF ROUGH CONTROL, NEW PROBLEMS TOOK THEIR PLACE — THE UNPRECEDENTED PROBLEMS OF AN AFFLUENT SOCIETY AND OF RACIAL JUSTICE.
