但最近几年，智能电表已经相当便宜，可以更广泛地进行安装了。

But in recent years they have become cheap enough for wider deployment.

youdao

但最近几年，智能电表已经相当便宜，可以更广泛地进行安装了。

But in recent years they have become cheap enough for wider deployment.

youdao