What the above shows is that in an index of 1 million sequential entries, the vast majority have the same leading byte and so will all be trying to get into the same block in the index.

• 上面所示的是在一个一百万序列项的索引中，绝大多数有一个相同的前导（/起始）字节，从而所有（操作）将使用索引中的同一块。