我们只是离开它，让它将成为空白。

We will just leave it and the city will become empty.

youdao

即使不成功，也不至于成为空白。

Even if you don't succeed, also not be blank.

youdao

如果不返回任何值，你就让它成为空白的。

And if you're returning nothing, you don't just leave it blank.

youdao

And if you're returning nothing, you don't just leave it blank.

如果不返回任何值，你就让它成为空白的。

哈佛公开课 - 计算机科学课程节选