The iron and steel industry is very important to our life.这句话怎么翻译,为什么用is不用are
问题描述：
The iron and steel industry is very important to our life.这句话怎么翻译,为什么用is不用are
答
钢铁工业对我们的生活很重要
industry 指的是 iron and steel； iron and steel 指的是钢铁,是一词组.
The （iron and steel） industry is very important to our life.这样你能明白?