在 Ruby 中合并和交错两个数组

我有以下代码:

a = ["Cat", "Dog", "Mouse"]
s = ["and", "&"]

我想将数组 s 合并到数组 a 中，这会给我:

I want to merge the array s into array a which would give me:

["Cat", "and", "Dog", "&", "Mouse"]

查看 Ruby Array 和 Enumerable 文档，我没有看到可以实现此目的的方法.

Looking through the Ruby Array and Enumerable docs, I don't see such a method that will accomplish this.

有没有一种方法可以在不遍历每个数组的情况下做到这一点?

Is there a way I can do this without iterating through each array?