Being a physicist, he knew he had to go back to the drawing board, wipe the slate clean, and start from point zero.

作为一个物理学家，莱斯特知道他得重新开始，将往事一笔勾销，然后从零开始。

January is a popular time to wipe the slate clean.

一月正是推陈出新的大好时机。

Let's wipe the slate clean and forget our past quarrels.

让我们捐弃前嫌，忘却过去的争吵吧。

After a long argument, they decided to wipe the slate clean and be friends again.

他们经过长期争论, 最后决定不计旧怨,言归于好.