Hashes are one-way operations.

hash是单向操作。

Scalars, arrays, and hashes: my oh my!

标量、数组和哈希散列。

Arrays and hashes, however, are more complex.

然而，数组和散列更为复杂。

If the hashes are the same, the blocks are properly replicated.

如果散列值是相同的，数据块已经被正确的复制了。

Tied hashes are easier to write than tied arrays, and more useful.

绑定的散列比绑定的数组更易于编写，而且更有用。