青年群体变成了这一产业的中坚力量的翻译：Youth groups became the backbone of the industry 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

Youth groups into the backbone of this industry

Youth groups became the backbone of the industry

The youth community turned this industrial nucleus

Groups of young people have become the backbone of the industry

Youth groups became the backbone of the industry