Let’s go back to our old, unsorted array and try a different algorithm, merge sort.

让我们回到旧的未排序数组并尝试一种不同的算法，归并排序。

Now we are ready to merge, which is how " merge sort" gets its name.

现在我们准备合并，这就是“合并排序”得名的原因。

The first thing merge sort does is check if the size of the array is greater than 1.

合并排序做的第一件事是检查数组的大小是否大于 1。