！several等于短语a couple of ，中文意思是det. 几个，数个，pron. 几个，数个

Several avenues are open to us.有几个办法可以供我们选择。

A couple of inches of dry， powdery snow had fallen.降下了好几英寸厚的粉状干雪。

I saw a couple of men get out.

我看见有两个男人出去了。