### 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 several of <v>his</v> social software have relatively high daily activities and are mainstream social software, such as Facebook, WhatsApp, etc., but facing the rapid development of tiktok, Facebook has little confidence, and subversion is only a blink of an eye.
### Errors: There is a major accuracy/mistranslation error at "his" within <v></v>.

### 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.
