tabula

1.the team did not have complete freedom and a tabula rasa from which to work.

这支队伍没有完由，也缺乏事先计划，不从何处下手。

2.The unquestionable leitmotiv of the current development of the nation could be summarized as a mechanical tabula rasa of the past.

不容置疑展主要内容应该像拥有一个机械、白板过去。