是什么时候村民们才能意识到污染严重的翻译：When did the villagers realized that cause serious pollution 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

When the villagers is to realize that pollution

When did the villagers realized that cause serious pollution

Is when the villagers can realize the pollution to be serious

Villagers can be aware at what time serious pollution

When did the villagers realized that cause serious pollution