然后，和前面一样，检索所需的服务。

Then, as before, retrieve the required service.

youdao

和前面一样，一旦收到下面这条消息。

As before, once you receive this message.

youdao

和前面一样，创建新的分区和文件系统。

Create the new partition and file system as before.

youdao

And one is the third element. And just return, it's done. It is a palindrome. That make sense.

完成，数组时回文的，这就对了，因为数组1a1从前面和从后面读都是一样的。

麻省理工公开课 - 计算机科学及编程导论课程节选