2 sentences

1. 这就是区块链的世界。

   zhè jiù shì qū​kuài​liàn de shì​jiè.

   This is the world of blockchain.

   Source: OpenSubtitles

2. 什么是区块链？

   shén​me shì qū​kuài​liàn?

   What is blockchain?

   Source: OpenSubtitles