You may recall from Part 1 how I established both SSL and non-SSL communication using OpenSSL's BIO library.

我们可以回想一下在第1部分中是如何使用OpenSSL bio库来建立SSL和非ssl通信的。

youdao

OpenSSL USES an abstraction library called BIO to handle communication of various kinds, including files and sockets, both secure and not.

不管连接是安全的还是不安全的，OpenSSL都使用了一个名为BIO的抽象库来处理包括文件和套接字在内的各种类型的通信。

youdao

Using the Boost MPI library, you learn about the environment and the communicator classes and how you can achieve distributed communication.

通过使用Boost mpi库，了解environment和communicator类，以及如何实现分布式通信。

youdao

Afghan journalists can get help there with their work, sign up for courses, use a library and modern communication and publishing equipment, and attend discussions and lectures given by local and foreign guests.

UNESCO: Communication and Information