Their technology regressed.

他们的科技退化了。

youdao

You may notice, in fact, that it has regressed and worsened.

你可能注意到了，实际上，它退步了，恶化了。

youdao

You may notice, in fact, that it has regressed and worsened.

你可能注意到了，实际上，它退步了，恶化了。

youdao