### Chinese: 虽然他的几款社交软件现在的日活比较高，也是主流的社交软件，比如Facebook，WhatsApp等等，但是面对tiktok的快速发展，脸书也没有什么信心，颠覆之间也就是眨眼的功夫。
### English: Although some of its social <v>apps</v>, such as Facebook and WhatsApp, have high DAUs, Facebook has little confidence in the rapid development of tiktok. Subversion can happen between the blink of an eye.

### Improved English: Although the DAU of several of his social software is relatively high, and they are mainstream social software such as Facebook, WhatsApp; however, in the face of the rapid development of TikTok, Facebook has little confidence, and subversion could happen in the blink of an eye.
