And the answers to these questions on that bright St. Petersburg night were indefinite.

在那个明亮的圣彼得堡夜晚， 这些问题的答案是不确定的。

It was a bright night; and, though their two forms were hardly distinguishable, they themselves could see enough to examine the stones of the walls and to convince themselves that no breach, however skilful, had been effected.

这是一个明亮的夜晚； 而且，虽然他们的两种形式几乎无法区分， 但他们自己却可以看到足够的东西来检查墙壁的石头并说服自己没有突破口， 无论多么巧妙， 都已经实现。