在这里，可以用 "It has become clean here." 来表达 "这里变得干净了" 的意思。

"It has become" 是一个经常用来表示变化的结构，用来描述事物变得某种状态。例如：

It has become cold outside. (外面变冷了。)
It has become clear that he is not telpng the truth. (很明显他没有说真话。)

下面是几个更多例子：

It has become easier to use the internet. (使用互联网变得更容易了。)
It has become harder to find a job. (找工作变得更困难了。)
It has become more expensive to pve in the city. (在城市生活变得更贵了。)

希望这些信息对你有帮助！